2 <!DOCTYPE article PUBLIC "-//OASIS//DTD DocBook V3.1//EN">
9 <title>Free Software Project Management HOWTO</title>
12 <firstname>Benjamin</firstname>
13 <othername>"Mako"</othername>
14 <surname>Hill</surname>
17 <email>mako@debian.org</email>
24 <revnumber>v0.3.2</revnumber>
25 <date>15 April 2002</date>
26 <authorinitials>bch</authorinitials>
30 <revnumber>v0.3.1</revnumber>
31 <date>18 June 2001</date>
32 <authorinitials>bch</authorinitials>
36 <revnumber>v0.3</revnumber>
37 <date>5 May 2001</date>
38 <authorinitials>bch</authorinitials>
42 <revnumber>v0.2.1</revnumber>
43 <date>10 April 2001</date>
44 <authorinitials>bch</authorinitials>
48 <revnumber>v0.2</revnumber>
49 <date>8 April 2001</date>
50 <authorinitials>bch</authorinitials>
54 <revnumber>v0.01</revnumber>
55 <date>27 March 2001</date>
56 <authorinitials>bch</authorinitials>
57 <revremark>Initial Release</revremark>
63 <primary>fswd</primary>
67 This HOWTO is designed for people with experience in programming
68 and some skills in managing a software project but who are new to
69 the world of free software. This document is meant to act as a
70 guide to the non-technical aspects of free software project
71 management and was written to be a crash course in the people
72 skills that aren't taught to commercial coders but that can make
73 or break a free software project.
79 <!-- Section1: intro -->
82 <title>Introduction</title>
85 <primary>fswd!introduction</primary>
89 Skimming through freshmeat.net provides mountains of reasons for this
90 HOWTO's existence--the Internet is littered with excellently
91 written and useful programs that have faded away into the universe
92 of free software forgottenness. This dismal scene made me ask
97 This HOWTO tries to do a lot of things (probably too many), but it
98 can't answer that question and won't attempt it. What this HOWTO
99 will attempt to do is give your Free Software project a fighting
100 chance--an edge. If you write a piece of crap that no one is
101 interested in, you can read this HOWTO until you can recite it in
102 your sleep and your project will probably fail. Then again, you can
103 write a beautiful, relevant piece of software and follow every
104 instruction in this HOWTO and your software may still not make
105 it. Sometimes life is like that. However, I'll go out a limb and
106 say that if you write a great, relevant pieces of software and
107 ignore the advise in this HOWTO, you'll probably fail <emphasis>
108 more often</emphasis>.
112 A lot of the information in this HOWTO is best called common
113 sense. Of course, as any debate on interfaces will prove, what is
114 common sense to some programmers proves totally unintuitive to
115 others. After explaining bits and pieces of this HOWTO to Free
116 Software developers on several occasions, I realized that writing
117 this HOWTO might provide a useful resource and a forum for
118 programmers to share ideas about what has and has not worked for
123 As anyone involved in any of what seems like an unending parade of
124 ridiculous intellectual property clashes will attest to, a little
125 bit of legalese proves important.
128 <!-- Section2: copyright -->
130 <sect2 id="copyright">
131 <title>Copyright Information</title>
134 This document is copyrighted (c) 2000 Benjamin "Mako" Hill and is
135 distributed under the terms of the <citetitle>GNU Free
136 Documentation License</citetitle>.
140 Permission is granted to copy, distribute and/or modify this
141 document under the terms of the <link
142 linkend="fdl"><citetitle>GNU Free Documentation
143 License</citetitle></link>, Version 1.1 or any later version
144 published by the Free Software Foundation with no Invariant
145 Sections, no Front-Cover Texts, and no Back-Cover Texts. A copy
146 of the license can be found in <xref linkend="fdl">.
150 <!-- Section2: disclaimer -->
152 <sect2 id="disclaimer">
153 <title>Disclaimer</title>
156 No liability for the contents of this documents can be accepted.
157 Use the concepts, examples and other content at your own risk. As
158 this is a new edition of this document, there may be errors and
159 inaccuracies, that may of course be damaging to your project (and
160 potentially your system). Proceed with caution, and although this
161 is highly unlikely, the author(s) does not take any responsibility
166 All copyrights are held by their by their respective owners, unless
167 specifically noted otherwise. Use of a term in this document
168 should not be regarded as affecting the validity of any trademark
173 Naming of particular products or brands should not be seen
179 <!-- Section2: newversions-->
181 <sect2 id="newversions">
182 <title>New Versions</title>
185 This version is the part of the third pre-release cycle of this
186 HOWTO. It is written to be released to developers for critique and
187 brainstorming. Please keep in mind that this version of the HOWTO
188 is still in an infant stage and will continue to be revised
193 The latest version number of this document should always be listed
194 on <ulink url="http://yukidoke.org/~mako/projects/howto">the projects
195 homepage </ulink> hosted by <ulink url="http://yukidoke.org">yukidoke.org.</ulink>
199 The newest version of this HOWTO will always be made available at
200 the same website, in a variety of formats:
208 <ulink url="http://yukidoke.org/~mako/projects/howto/FreeSoftwareProjectManagement-HOWTO/t1.html">HTML</ulink>.
215 <ulink url="http://yukidoke.org/~mako/projects/howto/FreeSoftwareProjectManagement-HOWTO.html">HTML (single page)</ulink>.
221 <ulink URL="http://yukidoke.org/~mako/projects/howto/FreeSoftwareProjectManagement-HOWTO.txt">plain text</ulink>.
227 <ulink url="http://yukidoke.org/~mako/projects/howto/FreeSoftwareProjectManagement-HOWTO.ps.gz">Compressed postscript</ulink>.
233 <ulink url="http://yukidoke.org/~mako/projects/howto/FreeSoftwareProjectManagement-HOWTO.sgml.gz">Compressed SGML source</ulink>.
240 <!-- Section2: credits -->
243 <title>Credits</title>
246 In this version I have the pleasure of acknowledging:
249 <para>Fellow Debian developer Martin Michlmayr and Vivek
250 Venugopalan who sent me information and links to extremely
251 interesting articles. I've added both to the bibliography and I've
252 added information from each into the HOWTO. Thanks to Andrew Shugg
253 who pointed out several errors in the document. Also, a big thanks
254 to Sung Wook Her (AKA RedBaron) who is doing the first translation
255 of the HOWTO into Korean. I've been happy to see that people have
256 enjoyed and benefited from the HOWTO so far.</para>
259 Older thanks that I don't want to take out yet include: Josh
260 Crawford, Andy King, and Jaime Davila who all read through this in
261 entirety and gave me feedback that has helped me make changes and
262 improvements to this document. I can't thank you guys enough for
263 your help. An extra <quote>Thank You</quote> goes to Andy King who
264 who read through this several times and submitted patches to make
269 Karl Fogel, the author of <citetitle>Open Source Development with
270 CVS</citetitle> published by the Coriolis Open Press. Large parts
271 of his book are available <ulink
272 url="http://cvsbook.red-bean.com">on the web</ulink>. 225 pages of
273 the book are available under the GPL and constitute the best
274 tutorial on CVS I've ever seen. The rest of the book covers,
275 <quote>the challenges and philosophical issues inherent in running
276 an Open Source project using CVS.</quote> The book does a good job
277 of covering some of the subjects brought up in this HOWTO and much
278 more. <ulink url="http://cvsbook.red-bean.com">The book's
279 website</ulink> has information on ordering the book and provides
280 several translations of the chapters on CVS. If you are seriously
281 interested in running a Free Software project, you want this
282 book. I tried to mention Fogel in sections of this HOWTO where I
283 knew I was borrowing directly from his ideas. If I missed any, I'm
284 sorry. I'll try and have those fixed in future versions.
288 Karl Fogel can be reached at <email>kfogel (at) red-bean (dot)
293 Also providing support material, and inspiration for this HOWTO is
294 Eric S. Raymond for his prolific, consistent, and carefully
295 crafted arguments and Lawrence Lessig for reminding me of the
296 importance of Free Software. Additionally, I want to thank every
297 user and developer involved with the <ulink
298 url="http://www.debian.org">Debian Project</ulink>. The project
299 has provided me with a home, a place to practice free software
300 advocacy, a place to make a difference, a place to learn from
301 those who have been involved with the movement much longer than I,
302 and proof of a free software project that definitely, definitely
307 Above all, I want to thank <emphasis>Richard Stallman</emphasis>
308 for his work at the Free Software Foundation and for never giving
309 up. Stallman provides and articulates the philosophical basis that
310 attracts me to free software and that drives me toward writing a
311 document to make sure it succeeds. RMS can always be emailed at
312 <email>rms (at) gnu (dot) org</email>.
317 <!-- Section2: feedback -->
319 <sect2 id="feedback">
320 <title>Feedback</title>
323 Feedback is always and most certainly welcome for this
324 document. Without your submissions and input, this document
325 wouldn't exist. Do you feel that something is missing? Don't
326 hesitate to contact me to have me write a chapter, section, or
327 subsection or to write one yourself. I want this document to be a
328 product of the Free Software development process that it heralds
329 and I believe that its ultimate success will be rooted in its
330 ability to do this. Please send your additions, comments, and
331 criticisms to the following email address:
332 <email>mako@debian.org</email>.
336 <!-- Section2: translations -->
338 <sect2 id="translations">
339 <title>Translations</title>
342 I know that not everyone speaks English. Translations are nice and
343 I'd love for this HOWTO to gain the kind of international reach
344 afforded by translated versions.
348 I've been contacted by a reader who promises a translation into
349 Korean. However, this HOWTO is still young and other than the
350 promise of Korean, English is all that is currently available. If
351 you would like to help with or do a translation, you will gain my
352 utmost respect and admiration and you'll get to be part of a cool
353 process. If you are at all interested, please don't hesitate to
354 contact me at: <email>mako@debian.org</email>.
359 <!-- Section1: intro: END -->
361 <!-- Section1: starting -->
363 <sect1 id="starting">
364 <title>Starting a Project</title>
367 <primary>fswd!starting</primary>
370 With very little argument, the beginning is the most difficult
371 period in a project's life to do successful free software project
372 management. Laying a firm foundation will determine whether your
373 project flourishes or withers away and dies. It is also the subject
374 that is of most immediate interest to anyone reading this document
379 Starting a project involves a dilemma that you as a developer must
380 try and deal with: no potential user for your program is interested
381 in a program that doesn't work, while the development process that
382 you want to employ holds involvement of users as imperative.
386 It is in these dangerous initial moments that anyone working to
387 start a free software project must try and strike a balance along
388 these lines. One of the most important ways that someone trying to
389 start a project can work toward this balance is by establishing a
390 solid framework for the development process through some of the
391 suggestions mentioned in this section.
395 <!-- Section2: chooseproject-->
397 <sect2 id="chooseproject">
398 <title>Choosing a Project</title>
401 If you are reading this document, there's a good chance you
402 already have an idea for a project in mind. Chances are also
403 pretty good that it fills a perceived gap by doing something that
404 no other free software project does or by doing something in a way
405 that is unique enough to necessitate a brand new piece of
409 <sect3 id=identifyidea>
410 <title>Identify and articulate your idea</title>
412 Eric S. Raymond writes about how free software projects start in
414 url="http://www.tuxedo.org/~esr/writings/cathedral-bazaar/"><quote>The
415 Cathedral and the Bazaar,</quote></ulink> which comes as required
416 reading for any free software developer. It is available online .
420 In <quote>The Cathedral and the Bazaar,</quote> Raymond tells us
421 that: <quote>every good work of software starts by scratching
422 a developers itch.</quote> Raymond's now widely accepted
423 hypothesis is that new free software programs are written, first
424 and foremost, to solve a specific problem facing the developer.
428 If you have an idea for a program in mind, chances are good that
429 it targets a specific problem or <quote>itch</quote> you want to
430 see scratched. <emphasis>This idea is the project.</emphasis>
431 Articulate it clearly. Write it out. Describe the problem you
432 will attack in detail. The success of your project in tackling a
433 particular problem will be tied to your ability to identify that
434 problem clearly early on. Find out exactly what it is that you
435 want your project to do.
439 Monty Manley articulates the importance of this initial step in
440 an essay, <quote><ulink
441 url="http://news.linuxprogramming.com/news_story.php3?ltsn=2000-10-31-001-05-CD">Managing
442 Projects the Open Source Way.</ulink></quote> As the next section
443 will show, there is <emphasis>a lot</emphasis> of work that needs
444 to be done before software is even ready to be coded. Manley
445 says, <quote>Beginning an OSS project properly means that a
446 developer must, first and foremost, avoid writing code too
451 <sect3 id=evalulateidea>
452 <title>Evaluate your idea</title>
455 In evaluating your idea, you need to first ask yourself a few
456 questions. This should happen before you move any further
457 through this HOWTO. Ask yourself: <emphasis>Is the free software
458 development model really the right one for your
463 Obviously, since the program scratches your itch, you are
464 definitely interested in seeing it implemented in code. But,
465 because one hacker coding in solitude fails to qualify as a free
466 software development effort, you need to ask yourself a second
467 question: <emphasis>Is anybody else interested?</emphasis>
471 Sometimes the answer is a simple <quote>no.</quote> If you want
472 to write a set of scripts to sort <emphasis>your</emphasis>
473 <acronym>MP3</acronym> collection on <emphasis>your</emphasis>
474 machine, <emphasis>maybe</emphasis> the free software development
475 model is not the best one to choose. However, if you want to
476 write a set of scripts to sort <emphasis>anyone's</emphasis>
477 <acronym>MP3</acronym>s, a free software project might fill a
482 Luckily, the Internet is a place so big and so diverse that,
483 chances are, there is someone, somewhere, who shares your
484 interests and who feels the same <quote>itch.</quote> It is the
485 fact that there are so many people with so many similar needs and
486 desires that introduces the third major question: <emphasis>Has
487 somebody already had your idea or a reasonably similar
492 <title>Finding Similar Projects</title>
495 There are places you can go on the web to try and answer the
496 question above. If you have experience with the free software
497 community, you are probably already familiar with many of these
498 sites. All of the resources listed below offer searching of
505 <term>freshmeat.net</term>
507 <para><ulink url="http://freshmeat.net">freshmeat.net</ulink>
508 describes itself as, <quote>the Web's largest index of Linux
509 and Open Source software</quote> and its reputation along
510 these lines is totally unparalleled and unquestioned. If you
511 can't find it on freshmeat, its doubtful that you (or anyone
512 else) will find it at all.</para>
517 <term>Slashdot</term>
519 <para><ulink url="http://slashdot.org">Slashdot</ulink>
520 provides <quote>News for Nerds. Stuff that matters,</quote>
521 which usually includes discussion of free software, open
522 source, technology, and geek culture news and events. It is
523 not unusual for a particularly sexy development effort to be
524 announced here, so it is definitely worth checking.</para>
529 <term>SourceForge</term>
531 <para><ulink url="http://sourceforge.net">SourceForge</ulink>
532 houses and facilitates a growing number of open source and
533 free software projects. It is also quickly becoming a nexus
534 and a necessary stop for free software
535 developers. SourceForge's <ulink
536 url="http://sourceforge.net/softwaremap/trove_list.php">software
537 map</ulink> and <ulink url="http://sourceforge.net/new/"> new
538 release</ulink> pages should be necessary stops before
539 embarking on a new free software project. SourceForge also
541 url="http://sourceforge.net/snippet/">Code Snippet
542 Library</ulink> which contains useful reusable chunks of code
543 in an array of languages which can come in useful in any
549 <term>Google and Google's Linux Search</term>
551 <para><ulink url="http://www.google.com">Google</ulink> and
552 <ulink url="http://www.google.com/linux"> Google's Linux
553 Search</ulink>, provides powerful web searches that may reveal
554 people working on similar projects. It is not a catalog of
555 software or news like freshmeat or Slashdot, but it is worth
556 checking to make sure you aren't pouring your effort into a
557 redundant project.</para>
566 <title>Deciding to Proceed</title>
568 Once you have successfully charted the terrain and have an idea
569 about what kinds of similar free software projects exist, every
570 developer needs to decide whether to proceed with their own
571 project. It is rare that a new project seeks to accomplish a
572 goal that is not at all similar or related to the goal of
573 another project. Anyone starting a new project needs to ask
574 themselves: <quote>Will the new project be duplicating work done
575 by another project? Will the new project be competing for
576 developers with an existing project? Can the goals of the new
577 project be accomplished by adding functionality to an existing
582 If the answer to any of these questions is <quote>yes,</quote>
583 try to contact the developer of the existing project(s) in
584 question and see if he or she might be willing to collaborate
589 For many developers this may be the single most difficult aspect
590 of free software project management, but it is an essential one. It is
591 easy to become fired up by an idea and get caught up in the
592 momentum and excitement of a new project. It is often extremely
593 difficult to do, but it is important that any free software
594 developer remembers that the best interests of the free software
595 community and the quickest way to accomplish your own project's
596 goals and the goals of similar projects can often be
597 accomplished by <emphasis>not</emphasis> starting a new
605 <!-- Section2: naming-->
608 <title>Naming your project</title>
611 While there are plenty of projects that fail with descriptive
612 names and plenty that succeed without them, I think naming your
613 project is worth giving a bit of thought. Leslie Orchard tackles
614 this issue in an <ulink
615 url="http://www.advogato.org/article/67.html">Advogato
616 article</ulink>. His article is short and definitely worth looking
621 The synopsis is that Orchard recommends you pick a name where,
622 after hearing the name, many users or developers will both:
628 <para>Know what the project does.</para>
631 <para>Remember it tomorrow.</para>
637 Humorously, Orchard's project, <quote>Iajitsu,</quote> does
638 neither. It is probably unrelated that development has effectively
639 frozen since the article was written.
643 He makes a good point though. There are companies whose only job
644 is to make names for pieces of software. They make
645 <emphasis>ridiculous</emphasis> amount of money doing it and are
646 supposedly worth it. While you probably can't afford a company like
647 this, you can afford to learn from their existence and think a
648 little bit about the name you are giving your project because it
649 <emphasis>does</emphasis> matter.
653 If there is a name you really want but it doesn't fit Orchard's
654 criteria, you can still go ahead. I thought <quote>gnubile</quote>
655 was one of the best I'd heard for a free software project ever and
656 I still talk about it long after I've stopped using the
657 program. However, if you can be flexible on the subject, listen to
658 Orchard's advice. It might help you.
662 <!-- Section2: licensing-->
664 <sect2 id="licensing">
665 <title>Licensing your Software</title>
668 On one (somewhat simplistic) level, the difference between a piece
669 of free software and a piece of propriety software is the
670 license. A license helps you as the developer by protecting your
671 legal rights to have your software distributed under your terms
672 and helps demonstrate to those who wish to help you or your
673 project that they are encouraged to join.
676 <sect3 id="chooselicense">
677 <title>Choosing a license</title>
680 Any discussion of licenses is also sure to generate at least a
681 small flame war as there are strong feelings that some free
682 software licenses are better than others. This discussion also
683 brings up the question of <quote>Open Source Software</quote> and
684 the debate over the terms <quote>Open Source Software</quote> and
685 <quote>Free Software</quote>. However, because I've written the
686 Free Software Project Management HOWTO and not the Open Source
687 Software Project Management HOWTO, my own allegiances in this
688 argument are in the open.
692 In attempting to reach a middle ground through diplomacy without
693 sacrificing my own philosophy, I will recommend picking any
694 license that conforms to the <ulink
695 url="http://www.debian.org/social_contract">Debian Free Software
696 Guidelines</ulink>. Originally compiled by the Debian project
697 under Bruce Perens, the <acronym>DFSG</acronym> forms the first
698 version of the <ulink
699 url="http://www.opensource.org/docs/definition_plain.html">Open
700 Source Definition.</ulink> Examples of free licenses given by the
701 <acronym>DFSG</acronym> are the <acronym>GPL</acronym>, the
702 <acronym>BSD</acronym>, and the Artistic License. As ESR mentions
703 in his his HOWTO<xref linkend="esrhowto">, don't write your own
704 license if at all possible. The three licenses I mention all have
705 long interpretive traditions. They are also definitely free
706 software (and can therefore be distributed as part of Debian and
707 in other places that permit the transfer of free software).
711 Conforming to the definition of free software offered by Richard
713 url="http://www.gnu.org/philosophy/free-sw.html"><quote>The Free
714 Software Definition</quote></ulink>, any of these licenses will
715 uphold, <quote>users' freedom to run, copy, distribute, study,
716 change and improve the software.</quote> There are plenty of
717 other licenses that also conform to the <acronym>DFSG</acronym>
718 but sticking with a more well-known license will offer the
719 advantage of immediate recognition and understanding. Many
720 people write three or four sentences in a COPYING file and assume
721 that they have written a free software license--as my long
722 experience with the debian-legal mailing professes, this is very
727 In attempting a more in-depth analysis, I agree with Karl Fogel's
728 description of licenses as falling into two groups: those that
729 are the <acronym>GPL</acronym> and those that are not the
730 <acronym>GPL</acronym>.
734 Personally, I license all my software under the
735 <acronym>GPL</acronym>. Created and protected by the Free
736 Software Foundation and the GNU Project, the
737 <acronym>GPL</acronym> is the license for the Linux kernel,
738 GNOME, Emacs, and the vast majority of GNU/Linux software. It's
739 the obvious choice but I also believe it is a good one. Any BSD
740 fanatic will urge you to remember that there is a viral aspect to
741 the <acronym>GPL</acronym> that prevents the mixture of
742 <acronym>GPL</acronym>'ed code with non-<acronym>GPL</acronym>'ed
743 code. To many people (myself included), this is a benefit, but to
744 some, it is a major drawback.
748 Many people write three or four sentences in a COPYING file and
749 assume that they have written a free software license--as my long
750 experience with the debian-legal mailing professes, this is very
751 often not the case. It may not protect you, it may not protect
752 your software, and it may make things very difficult for people
753 that want to use your software but who pay a lot of attention to
754 the subtle legal points of licenses. If you are passionate about
755 a home-brewed license, run it by either people at <ulink
756 url="http://www.opensource.org">OSI</ulink> or the <ulink
757 url="mailto:debian-devel@lists.debian.org">debian-legal mailing
758 list</ulink> first protect yourself from unanticipated
759 side-effects of your license.
763 The three major licenses can be found at the following locations:
769 <para><ulink url="http://www.gnu.org/copyleft/gpl.html">The GNU
770 General Public License</ulink></para>
773 <para><ulink url="http://www.debian.org/misc/bsd.license">The
774 BSD License</ulink></para>
778 url="http://language.perl.com/misc/Artistic.html">The Artistic
779 License</ulink></para>
785 <emphasis>In any case, please read through any license before
786 your release your software under it. As the primary developer,
787 you can't afford any license surprises.</emphasis>
791 <sect3 id="licensechoose">
792 <title>The mechanics of licensing</title>
795 The text of the <acronym>GPL</acronym> offers <ulink
796 url="http://www.gnu.org/copyleft/gpl.html#SEC4">a good
797 description of the mechanics of applying a license</ulink> to a
798 piece of software. My quick checklist for applying a license
806 <para>Make yourself or the FSF the copyright holder for the
807 work. In a few rare cases, you might want to make a sponsoring
808 organization (if it's big and powerful enough) the copyright
809 holder instead. Doing this is as simple as putting the name in
810 the blank when you modify the notice of copyright
811 below. Contrary to popular belief, you don't need to file with
812 any organization. The notice alone is enough to copyright your
817 <para>If at all possible, attach and distribute a full copy of
818 the license with the source and binary by including a separate
823 <para>At the top of each source file in your program, attach a
824 notice of copyright and include information on where the full
825 license can be found. The <acronym>GPL</acronym> recommends
826 that each file begin with:</para>
829 <emphasis>one line to give the program's name and an idea of what it does.</emphasis>
830 Copyright (C) yyyy name of author
832 This program is free software; you can redistribute it and/or
833 modify it under the terms of the GNU General Public License
834 as published by the Free Software Foundation; either version 2
835 of the License, or (at your option) any later version.
837 This program is distributed in the hope that it will be useful,
838 but WITHOUT ANY WARRANTY; without even the implied warranty of
839 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
840 GNU General Public License for more details.
842 You should have received a copy of the GNU General Public License
843 along with this program; if not, write to the Free Software
844 Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
848 The <acronym>GPL</acronym> goes on to recommend attaching
849 information on methods for contacting you (the author) via
850 email or physical mail.
856 The <acronym>GPL</acronym> continues and suggests that if your
857 program runs in an interactive mode, you should write the
858 program to output a notice each time it enters interactive
859 mode that includes a message like this one that points to full
860 information about the programs license:
864 Gnomovision version 69, Copyright (C) year name of author
865 Gnomovision comes with ABSOLUTELY NO WARRANTY; for details
866 type `show w'. This is free software, and you are welcome
867 to redistribute it under certain conditions; type `show c'
873 <para>Finally, it might be helpful to include a
874 <quote>copyright disclaimer</quote> from an employer or a
875 school if you work as a programmer or if it seems like your
876 employer or school might be able to make an argument for
877 ownership of your code later on. These aren't often needed but
878 there are plenty of free software developers who have gotten
879 into trouble and wish they'd asked for one.</para>
886 <sect3 id="licensewarning">
887 <title>Final license warning</title>
890 Please, please, please, place your software under
891 <emphasis>some</emphasis> license. It may not seem important, and
892 to you it may not be, but licenses <emphasis>are</emphasis>
893 important. For a piece of software to be included in the Debian
894 GNU/Linux distribution, it must have a license that fits the
895 <ulink url="http://www.debian.org/social_contract">Debian Free
896 Software Guidelines</ulink>. If your software has no license, it
897 can not be distributed as a package in Debian until you
898 re-release it under a free license. Please save yourself and
899 others trouble by releasing the first version of your software
900 with a clear license.
907 <!-- Section2: chooseversioning-->
909 <sect2 id="chooseversioning">
910 <title>Choosing a Method of Version Numbering</title>
913 <emphasis>The most important thing about a system of version
914 numbering is that there is one.</emphasis> It may seem pedantic to
915 emphasize this point but you'd be surprised at the number of
916 scripts and small programs that pop up without any version number
921 <emphasis>The second most important thing about a system of
922 numbering is that the numbers always go up.</emphasis> Automatic
923 version tracking systems and people's sense of order in the
924 universe will fall apart if version numbers don't rise. It doesn't
925 <emphasis>really</emphasis> matter if 2.1 is a big jump and
926 2.0.005 is a small jump but it does matter that 2.1 is more recent
931 Follow these two simple rules and you will not go (too)
932 wrong. Beyond this, the most common technique seems to be the
933 <quote>major level,</quote> <quote>minor level,</quote>
934 <quote>patch level</quote> version numbering scheme. Whether you
935 are familiar with the name or not, you interact with it all the
936 time. The first number is the major number and it signifies major
937 changes or rewrites. The second number is the minor number and it
938 represents added or tweaked functionality on top of a largely
939 coherent structure. The third number is the patch number and it
940 usually will only refer to releases fixing bugs.
944 The widespread use of this scheme is why I know the nature and
945 relative degree in the differences between a 2.4.12 release of the
946 Linux kernel and a 2.4.11, 2.2.12, and 1.2.12 without knowing
947 anything about any of the releases.
951 You can bend or break these rules, and people do. But beware, if
952 you choose to, someone will get annoyed, assume you don't know,
953 and try and educate you, probably not nicely. I always follow this
954 method and I implore you to do so as well.
958 There are several version numbering systems that are well known,
959 useful, and that might be worth looking into before you release
965 <term>Linux kernel version numbering:</term>
967 <para>The Linux kernel uses a versioning system where any odd
968 minor version number refers to an development or testing release
969 and any even minor version number refers to a stable
970 version. Think about it for a second. Under this system, 2.1 and
971 2.3 kernels were and always will be development or testing
972 kernels and 2.0, 2.2. and 2.4 kernels are all production code
973 with a higher degree of stability and more testing.
977 Whether you plan on having a split development model (as
978 described in <xref linkend="branches">) or only one version
979 released at a time, my experience with several free software
980 projects and with the Debian project has taught me that use of
981 Linux's version numbering system is worth taking into
982 consideration. In Debian, <emphasis>all</emphasis> minor
983 versions are stable distributions (2.0, 2.1, etc). However,
984 many people assume that 2.1 is an unstable or development
985 version and continue to use an older version until they get so
986 frustrated with the lack of development progress that they
987 complain and figure the system out. If you never release an odd
988 minor version but only release even ones, nobody is hurt, and
989 less people are confused. It's an idea worth taking into
996 <term>Wine version numbering:</term>
998 <para>Because of the unusual nature of wine's development where
999 the not-emulator is constantly improving but not working toward
1000 any immediately achievable goal, wine is released every three
1001 weeks. Wine does this by labeling their releases in <quote>Year
1002 Month Day</quote> format where each release might be labeled
1003 <quote>wine-XXXXXXXX</quote> where the version from January 04,
1004 2000 would be <quote>wine-20000104</quote>. For certain
1005 projects, <quote>Year Month Day</quote> format can make a lot of
1012 <term>Mozilla milestones:</term>
1014 <para>When one considers Netscape 6 and vendor versions, the
1015 mozilla's project development structure is one of the most
1016 complex free software models available. The project's version
1017 numbering has reflected the unique situation in which it is
1022 Mozilla's version numbering structure has historically been
1023 made up of milestones. From the beginning of the mozilla
1024 project, the goals of the project in the order and degree to
1025 which they were to be achieved were charted out on a series of
1026 <ulink url="http://www.mozilla.org/roadmap.html">road
1027 maps</ulink>. Major points and achievements along these
1028 road-maps were marked as milestones. Therefore, although
1029 Mozilla was built and distributed nightly as <quote>nightly
1030 builds,</quote> on a day when the goals of a milestone on the
1031 road-map had been reached, that particular build was marked as
1032 a <quote>milestone release.</quote>
1036 While I haven't seen this method employed in any other projects
1037 to date, I like the idea and think that it might have value in
1038 any testing or development branch of a large application under
1047 <!-- Section2: documentation-->
1049 <sect2 id="documentation">
1050 <title>Documentation</title>
1053 A huge number of otherwise fantastic free software applications
1054 have withered and died because their author was the only person
1055 who knew how to use them fully. Even if your program is written
1056 primarily for a techno-savvy group of users, documentation is
1057 helpful and even necessary for the survival of your project. You
1058 will learn later in <xref linkend="releasing"> that you should
1059 always release something that is usable. <emphasis>A piece of
1060 software without documentation is not usable.</emphasis>
1064 There are lots of different people you should document for and
1065 there are lots of ways to document your project. <emphasis>The
1066 importance of documentation in source code to help facilitate
1067 development by a large community is vital</emphasis> but it falls
1068 outside the scope of this HOWTO. This being the case, this section
1069 deals with useful tactics for user-directed documentation.
1073 A combination of tradition and necessity has resulted in a
1074 semi-regular system of documentation in most free software
1075 projects that is worth following. Both users and developers expect
1076 to be able to get documentation in several ways and it's essential
1077 that you provide the information they are seeking in a form they
1078 can read if your project is ever going to get off the
1079 ground. People have come to expect:
1083 <title>Man pages</title>
1085 <para>Your users will want to be able to type <quote>man
1086 yourprojectname</quote> end up with a nicely formatted man page
1087 highlighting the basic use of your application. Make sure that
1088 before you release your program, you've planned for this.
1092 Man pages are not difficult to write. There is excellent
1093 documentation on the man page writing process available through
1094 the <quote>The Linux Man-Page-HOWTO</quote> which is available
1095 through the Linux Documentation project <acronym>(LDP)</acronym>
1096 and is written by Jens Schweikhardt. It is available <ulink
1097 url="http://www.schweikhardt.net/man_page_howto.html">from
1098 Schweikhardt's site</ulink> or <ulink
1099 url="http://www.linuxdoc.org/HOWTO/mini/Man-Page.html">from the
1100 <acronym>LDP</acronym></ulink>.
1104 It is also possible to write man pages using DocBook
1105 SGML. Because man pages are so simple and the DocBook method
1106 relatively new, I have not been able to follow this up but would
1107 love help from anyone who can give me more information on how
1108 exactly how this is done.
1113 <title>Command line accessible documentation</title>
1116 Most users will expect some basic amount of documentation to be
1117 easily available from the command line. For few programs should
1118 this type of documentation extend for more than one screen (24 or
1119 25 lines) but it should cover the basic usage, a brief (one or
1120 two sentence) description of the program, a list of the commands
1121 with explanations, as well as all the major options (also with
1122 explanations), plus a pointer to more in-depth documentation for
1123 those who need it. The command line documentation for Debian's
1124 apt-get serves as an excellent example and a useful model:
1128 apt 0.3.19 for i386 compiled on May 12 2000 21:17:27
1129 Usage: apt-get [options] command
1130 apt-get [options] install pkg1 [pkg2 ...]
1132 apt-get is a simple command line interface for downloading and
1133 installing packages. The most frequently used commands are update
1137 update - Retrieve new lists of packages
1138 upgrade - Perform an upgrade
1139 install - Install new packages (pkg is libc6 not libc6.deb)
1140 remove - Remove packages
1141 source - Download source archives
1142 dist-upgrade - Distribution upgrade, see apt-get(8)
1143 dselect-upgrade - Follow dselect selections
1144 clean - Erase downloaded archive files
1145 autoclean - Erase old downloaded archive files
1146 check - Verify that there are no broken dependencies
1150 -q Loggable output - no progress indicator
1151 -qq No output except for errors
1152 -d Download only - do NOT install or unpack archives
1153 -s No-act. Perform ordering simulation
1154 -y Assume Yes to all queries and do not prompt
1155 -f Attempt to continue if the integrity check fails
1156 -m Attempt to continue if archives are unlocatable
1157 -u Show a list of upgraded packages as well
1158 -b Build the source package after fetching it
1159 -c=? Read this configuration file
1160 -o=? Set an arbitary configuration option, eg -o dir::cache=/tmp
1161 See the apt-get(8), sources.list(5) and apt.conf(5) manual
1162 pages for more information and options.
1166 It has become a GNU convention to make this type of information
1167 accessible with the <quote>-h</quote> and the
1168 <quote>--help</quote> options. Most GNU/Linux users will expect
1169 to be able to retrieve basic documentation these ways so if you
1170 choose to use different methods, be prepared for the flames and
1171 fallout that may result.
1176 <title>Files users will expect</title>
1178 In addition to man pages and command-line help, there are certain
1179 files where people will look for documentation, especially in any
1180 package containing source code. In a source distribution, most of
1181 these files can be stored in the root directory of the source
1182 distribution or in a subdirectory of the root called
1183 <quote>doc</quote> or <quote>Documentation.</quote> Common files
1184 in these places include:
1190 <term>README or Readme</term>
1193 <para>A document containing all the basic installation,
1194 compilation, and even basic use instructions that make up the
1195 bare minimum information needed to get the program up and
1196 running. A README is not your chance to be verbose but should
1197 be concise and effective. An ideal README is at least 30 lines
1198 long and more no more than 250.</para>
1203 <term>INSTALL or Install</term>
1206 <para>The INSTALL file should be much shorter than the README
1207 file and should quickly and concisely describe how to build
1208 and install the program. Usually an INSTALL file simply
1209 instructs the user to run <quote>./configure; make; make
1210 install</quote> and touches on any unusual options or actions
1211 that may be necessary. For most relatively standard install
1212 procedures and for most programs, INSTALL files are as short
1213 as possible and are rarely over 100 lines.</para>
1218 <term>CHANGELOG, Changelog, ChangeLog, or changelog</term>
1221 <para>A CHANGELOG is a simple file that every well-managed
1222 free software project should include. A CHANGELOG is simple
1223 the file that, as its name implies, logs or documents the
1224 changes you make to your program. The most simple way to
1225 maintain a CHANGELOG is to simply keep a file with the source
1226 code for your program and add a section to the top of the
1227 CHANGELOG with each release describing what has been changed,
1228 fixed, or added to the program. It's a good idea to post the
1229 CHANGELOG onto the website as well because it can help people
1230 decide whether they want or need to upgrade to a newer version
1231 or wait for a more significant improvement.</para>
1239 <para>A NEWS file and a ChangeLog are similar. Unlike a
1240 CHANGELOG, a NEWS file is not typically updated with new
1241 versions. Whenever new features are added, the developer
1242 responsible will make a note in the NEWS file. NEWS files
1243 should not have to be changed before a release (they should be
1244 kept up to date all along) but it's usually a good idea to
1245 check first anyway because often developers just forget to
1246 keep them as current as they should.</para>
1251 <term><acronym>FAQ</acronym></term>
1254 <para>For those of you that don't already know,
1255 <acronym>FAQ</acronym> stands for Frequently Asked Questions
1256 and a FAQ is a collection of exactly that. FAQs are not
1257 difficult to make. Simply make a policy that if you are asked
1258 a question or see a question on a mailing list two or more
1259 times, add the question (and its answer) to your FAQ. FAQs are
1260 more optional than the files listed above but they can save
1261 your time, increase usability, and decrease headaches on all
1271 <title>Website</title>
1273 It's only indirectly an issue of documentation but a good website
1274 is quickly becoming an essential part of any free software
1275 project. Your website should provide access to your documentation
1276 (in <acronym>HTML</acronym> if possible). It should also include
1277 a section for news and events around your program and a section
1278 that details the process of getting involved with development or
1279 testing and make an open invitation. It should also supply links
1280 to any mailing lists, similar websites, and provide a direct link
1281 to all the available ways of downloading your software.
1286 <title>Other documentation hints</title>
1291 All your documentation should be in plaintext, or, in cases
1292 where it is on your website primarily, in HTML. Everyone can
1293 cat a file, everyone has a pager, (almost) everyone can render
1294 HTML. <emphasis>You are welcome to distribute information in
1295 PDF, PostScript, RTF, or any number of other widely used
1296 formats but this information must also be available in
1297 plaintext or HTML or people will be very angry at
1298 you.</emphasis> In my opinion, info falls into this category
1299 as well. There is plenty of great GNU documentation that
1300 people simply don't read because it only in info. And this
1301 <emphasis>does</emphasis> make people angry. It's not a
1302 question of superior formats; it is a question of
1303 accessability and the status quo plays a huge role in this
1310 It doesn't hurt to distribute any documentation for your
1311 program from your website (FAQs etc) with your program. Don't
1312 hesitate to throw any of this in the program's tarball. If
1313 people don't need it, they will delete it. I can repeat it over
1314 and over: <emphasis>Too much documentation is not a
1320 <para>Unless your software is particular to a non-English
1321 language (a Japanese language editor for example), please
1322 distribute it with English language documentation. If you don't
1323 speak English or not not confident in your skills, ask a friend
1324 for help. Like it or not, fair or unfair, <emphasis>English is
1325 the language of free software</emphasis>. However, this does not
1326 mean you should limit your documentation to only English. If you
1327 speak another language, distribute translations of documentation
1328 with your software if you have the time and energy to do
1329 so. They will invariably be useful to someone.</para>
1334 Finally, <emphasis>please spell-check your
1335 documentation.</emphasis> Misspellings in documentation are
1336 bugs. I'm very guilty of committing this error and it's
1337 extremely easy to do. If English is not your first language,
1338 have a native speaker look over or edit your documentation or
1339 web pages. Poor spelling or grammar goes a long way to making
1340 your code look unprofessional. In code comments, this type of
1341 thing is less important but in man pages and web pages these
1342 mistakes are not acceptable.
1352 <!-- Section2: presentation -->
1354 <sect2 id="presentation">
1355 <title>Other Presentation Issues</title>
1357 Many of the remaining issues surrounding the creation of a new
1358 free software program fall under what most people describe as
1359 common sense issues. Its often said that software engineering is
1360 90 percent common sense combined with 10 percent specialized
1361 knowledge. Still, they are worth noting briefly in hopes that they
1362 may remind a developer of something they may have forgotten.
1366 <title>Package File Names</title>
1368 I agree with ESR when he says that: <quote> It's helpful to
1369 everybody if your archive files all have GNU-like names --
1370 all-lower-case alphanumeric stem prefix, followed by a dash,
1371 followed by a version number, extension, and other
1372 suffixes.</quote> There is more info (including lots of examples
1373 of what <emphasis>not</emphasis> to do in his <citetitle>Software
1374 Release Practices HOWTO</citetitle> which is included in this
1375 HOWTO's bibliography and can be found through the LDP.
1380 <title>Package formats</title>
1382 Package formats may differ depending on the system you are
1383 developing for. For windows based software, Zip archives (.zip)
1384 usually serve as the package format of choice. If you are
1385 developing for GNU/Linux, *BSD, or any UN*X, make sure that your
1386 source code is always available in tar'ed and gzip'ed format
1387 (.tar.gz). UNIX compress (.Z) has gone out of style and
1388 usefulness and faster computers have brought bzip2 (.bz2) into
1389 the spot-light as a more effective compression medium. I now make
1390 all my releases available in both gzip'ed and bzip2'ed tarballs.
1394 Binary packages should always be distribution specific. If you
1395 can build binary packages against a current version of a major
1396 distribution, you will only make your users happy. Try to foster
1397 relationships with users or developers of large distributions to
1398 develop a system for the consistent creation of binary
1399 packages. It's often a good idea to provide RedHat
1400 <acronym>RPM</acronym>'s (.rpm), Debian deb's (.deb) and source
1401 <acronym>RPM</acronym>'s <acronym>SRPM</acronym>'s if
1402 possible. Remember: <emphasis>While these binaries packages are
1403 nice, getting the source packaged and released should always be
1404 your priority. Your users or fellow developers can and will do
1405 the the binary packages for you.</emphasis>
1410 <title>Version control systems</title>
1413 A version control system can make a lot of these problems of
1414 packaging (and a lot of other problems mentioned in this HOWTO)
1415 less problematic. If you are using *NIX, CVS is your best bet. I
1416 recommend Karl Fogel's book on the subject (and the <ulink
1417 url="http://cvsbook.red-bean.com/">posted HTML version</ulink>)
1422 CVS or not, you should probably invest some time into learning
1423 about a version control system because it provides an automated
1424 way of solving many of the problems described by this HOWTO. I
1425 am not aware of any free version control systems for Windows or
1426 Mac OS but I know that CVS clients exist for both
1427 platforms. Websites like <ulink
1428 url="http://sourceforge.net">SourceForge</ulink> do a great job
1429 as well with a nice, easy-to-use web interface to CVS.
1433 I'd love to devote more space in this HOWTO to CVS because I love
1434 it (I even use CVS to keep versions straight on this HOWTO!) but
1435 I think it falls outside the scope of this document and already
1436 has its own HOWTOs. Most notably is the <citetitle>CVS Best
1437 Practices HOWTO</citetitle><xref linkend="cvsbestpractices">
1438 which I've included in the attached bibliography.
1444 <title>Useful tidbits and presentation hints</title>
1447 Other useful hints include:
1455 <emphasis>Make sure that your program can always be found in a
1456 single location.</emphasis> Often this means that you have a
1457 single directory accessible via <acronym>FTP</acronym> or the
1458 web where the newest version can be quickly recognized. One
1459 effective technique is a provide a symlink called
1460 <quote>yourprojectname-latest</quote> that is always pointing
1461 to the most recent released or development version of your
1462 free software application. Keep in mind that this location
1463 will receive many requests for downloads around releases so
1464 make sure that the server you choose has adequate bandwidth.
1470 <emphasis>Make sure that there is a consistent email address
1471 for bug reports.</emphasis> It's usually a good idea to make
1472 this something that is NOT your primary email address like
1473 yourprojectname@host or yourprojectname-bugs@host. This way,
1474 if you ever decide to hand over maintainership or if your
1475 email address changes, you simply need to change where this
1476 email address forwards. It also will allow for more than one
1477 person to deal with the influx of mail that is created if your
1478 project becomes as huge as you hope it will.
1488 <!-- Section1: starting: END -->
1490 <!-- Section1: developers -->
1492 <sect1 id="developers">
1493 <title>Maintaining a Project: Interacting with Developers</title>
1495 <primary>fswd!developers</primary>
1499 Once you have gotten your project started, you have overcome the
1500 most difficult hurdles in the development process of your
1501 program. Laying a firm foundation is essential, but the development
1502 process itself is equally important and provides just as many
1503 opportunities for failure. In the next two sections, I will
1504 describe running a project by discussing how to maintain a
1505 development effort through interactions with developers and with
1510 In releasing your program, your program becomes free software. This
1511 transition is more than just a larger user base. By releasing your
1512 program as free software, <emphasis>your</emphasis> software
1513 becomes the <emphasis>free software community's</emphasis>
1514 software. The direction of your software's development will be
1515 reshaped, redirected, and fully determined by your users and, to a
1516 larger extent, by other developers in the community.
1520 The major difference between free software development and
1521 propriety software development is the developer base. As the leader
1522 of a free software project, you need to attract and keep developers
1523 in a way that leaders of proprietary software projects simply don't
1524 have to worry about. <emphasis>As the person leading development of
1525 a free software project, you must harness the work of fellow
1526 developers by making responsible decisions and by responsibly
1527 choosing not to make decisions. You have to direct developers
1528 without being overbearing or bossy. You need to strive to earn
1529 respect and never forget to give it out.</emphasis>
1532 <!-- Section2: delegation -->
1534 <sect2 id="delegation">
1535 <title>Delegating Work</title>
1538 By now, you've hypothetically followed me through the early
1539 programming of a piece of software, the creation of a website and
1540 system of documentation, and we've gone ahead and (as will be
1541 discussed in <xref linkend="releasing">) released it to the rest
1542 of the world. Times passes, and if things go well, people become
1543 interested and want to help. The patches begin flowing in.
1547 <emphasis>Like the parent of any child who grows up, it's now time
1548 to wince, smile and do most difficult thing in any parents
1549 life: It's time to let go.</emphasis>
1553 Delegation is the political way of describing this process of
1554 <quote>letting go.</quote> It is the process of handing some of
1555 the responsibility and power over your project to other
1556 responsible and involved developers. It is difficult for anyone
1557 who has invested a large deal of time and energy into a project
1558 but it essential for the growth of any free software project. One
1559 person can only do so much. A free software project is nothing
1560 without the involvement of <emphasis>a group</emphasis> of
1561 developers. A group of developers can only be maintained through
1562 respectful and responsible leadership and delegation.
1566 As your project progresses, you will notice people who are putting
1567 significant amounts of time and effort into your project. These
1568 will be the people submitting the most patches, posting most on
1569 the mailing lists, and engaging in long email discussions. It is
1570 your responsibility to contact these people and to try and shift
1571 some of the power and responsibility of your position as the
1572 project's maintainer onto them (if they want it). There are
1573 several easy ways you can do this:
1577 In a bit of a disclaimer, delegation need not mean rule by
1578 committee. In many cases it does and this has been proven to
1579 work. In other cases this has created problems. <ulink
1580 url="http://news.linuxprogramming.com/news_story.php3?ltsn=2000-10-31-001-05-CD">Managing
1581 Projects the Open Source Way</ulink> argues that <quote>OSS
1582 projects do best when one person is the clear leader of a team and
1583 makes the big decisions (design changes, release dates, and so
1584 on).</quote> I think this often true but would urge developers to
1585 consider the ideas that the project leader need not be the
1586 project's founder and that these important powers need not all rest
1587 with one person but that a release manager may be different than a
1588 lead developer. These situations are tricky politically so
1589 be careful and make sure it's necessary before you go around
1594 <title>How to delegate</title>
1597 You may find that other developers seem even more experienced or
1598 knowledgeable than you. Your job as a maintainer does not mean
1599 you have to be the best or the brightest. It means you
1600 are responsible for showing good judgment and for
1601 recognizing which solutions are maintainable and which are not.
1604 Like anything, its easier to watch others delegate than to do it
1605 yourself. In a sentence: <emphasis>Keep an eye out for other
1606 qualified developers who show an interest and sustained
1607 involvement with your project and try and shift responsibility
1608 toward them.</emphasis> The following ideas might be good places
1609 to start or good sources of inspiration:
1613 <title>Allow a larger group of people to have write access to your CVS
1614 repository and make real efforts toward rule by a
1618 <ulink url="http://httpd.apache.org/">Apache</ulink> is an
1619 example of a project that is run by small group of developers
1620 who vote on major technical issues and the admission of new
1621 members and all have write access to the main source
1622 repository. Their process is detailed <ulink
1623 url="http://httpd.apache.org/ABOUT_APACHE.html">online.</ulink>
1627 The <ulink url="http://www.debian.org/"> Debian Project</ulink>
1628 is an extreme example of rule by committee. At current count,
1629 more than 700 developers have full responsibility for
1630 aspects of the project. All these developers can upload into
1631 the main FTP server, and vote on major issues. Direction for
1632 the project is determined by the project's <ulink
1633 url="http://www.debian.org/social_contract">social
1634 contract</ulink> and a <ulink
1635 url="http://www.debian.org/devel/constitution">constitution</ulink>. To
1636 facilitate this system, there are special teams (i.e. the
1637 install team, the Japanese language team) as well as a technical
1638 committee and a project leader. The leader's main responsibility
1639 is to, <quote>appoint delegates or delegate decisions to the
1640 Technical Committee.</quote>
1644 While both of these projects operate on a scale that your
1645 project will not (at least initially), their example is
1646 helpful. Debian's idea of a project leader who can do
1647 <emphasis>nothing</emphasis> but delegate serves as a
1648 caricature of how a project can involve and empower a huge
1649 number of developers and grow to a huge size.
1654 <sect4 id="releasemanager">
1655 <title>Publicly appoint someone as the release manager for a
1656 specific release</title>
1659 A release manager is usually responsible for coordinating
1660 testing, enforcing a code freeze, being responsible for
1661 stability and quality control, packaging up the software, and
1662 placing it in the appropriate places to be downloaded.
1666 This use of the release manager is a good way to give yourself a
1667 break and to shift the responsibility for accepting and
1668 rejecting patches onto someone else. It is a good way of very
1669 clearly defining a chunk of work on the project as belonging to
1670 a certain person and its a great way of giving yourself room to
1675 <sect4 id="delegatebranch">
1676 <title>Delegate control of an entire branch</title>
1678 If your project chooses to have branches (as described in <xref
1679 linkend="branches">), it might be a good idea to appoint someone
1680 else to be the the head of a branch. If you like focusing your
1681 energy on development releases and the implementation of new
1682 features, hand total control over the stable releases to a
1683 well-suited developer.
1687 The author of Linux, Linus Torvalds, came out and crowned Alan
1688 Cox as <quote>the man for stable kernels.</quote> All patches
1689 for stable kernels go to Alan and, if Linus were to be taken
1690 away from work on Linux for any reason, Alan Cox would be more
1691 than suited to fill his role as the acknowledged heir to the
1692 Linux maintainership.
1698 <!-- Section2: patching -->
1700 <sect2 id="patching">
1701 <title>Accepting and Rejecting Patches</title>
1703 This HOWTO has already touched on the fact that as the maintainer
1704 of a free software project, one of your primary and most important
1705 responsibilities will be accepting and rejecting patches submitted
1706 to you by other developers.
1710 <title>Encouraging Good Patching</title>
1712 <para>As the person managing or maintaining the project, you
1713 aren't the person who is going to be making a lot of
1714 patches. However, it's worth knowing about ESR's section on
1715 <citetitle>Good Patching Practice</citetitle> in the
1716 <citetitle>Software Release Practices HOWTO</citetitle><xref
1717 linkend="esrhowto">. I don't agree with ESR's claim that most ugly
1718 or undocumented patches are probably worth throwing out at first
1719 sight--this just hasn't been my experience, especially when
1720 dealing with bug fixes that often don't come in the form of
1721 patches at all. Of course, this doesn't mean that I
1722 <emphasis>like</emphasis> getting poorly done patches. If you get
1723 ugly -e patches, if you get totally undocumented patches, and
1724 especially if they are anything more than trivial bug-fixes, it
1725 might be worth judging the patch by some of the criteria in ESR's
1726 HOWTO and then throwing people the link to the document so they
1727 can do it the <quote>right way.</quote>
1733 <title>Technical judgment</title>
1736 In <emphasis>Open Source Development with CVS</emphasis>, Karl
1737 Fogel makes a convincing argument that the most important things
1738 to keep in mind when rejecting or accepting patches are:
1745 <para>A firm knowledge of the scope of your program (that's the
1746 <quote>idea</quote> I talked about in <xref linkend="chooseproject">);</para>
1750 <para>The ability to recognize, facilitate, and direct
1751 <quote>evolution</quote> of your program so that the program
1752 can grow and change and incorporate functionality that was
1753 originally unforeseen;</para>
1757 <para>The necessity to avoid digressions that might expand the
1758 scope of the program too much and result and push the project
1759 toward an early death under its own weight and
1760 unwieldiness.</para>
1767 These are the criteria that you as a project maintainer should
1768 take into account each time you receive a patch.
1772 Fogel elaborates on this and states the <quote>the
1773 questions to ask yourself when considering whether to implement
1774 (or approve) a change are:</quote>
1781 <para>Will it benefit a significant percentage of the program's
1782 user community?</para>
1786 <para>Does it fit within the program's domain or within a
1787 natural, intuitive extension of that domain?</para>
1794 The answers to these questions are never straightforward and its
1795 very possible (and even likely) that the person who submitted the
1796 patch may feel differently about the answer to these questions
1797 than you do. However, if you feel that that the answer to either
1798 of those questions is <quote>no,</quote> it is your responsibility
1799 to reject the change. If you fail to do this, the project will
1800 become unwieldy and unmaintainable and many ultimately fail.
1805 <title>Rejecting patches</title>
1808 Rejecting patches is probably the most difficult and sensitive
1809 job that the maintainer of any free software project has to
1810 face. But sometimes it has to be done. I mentioned earlier (in
1811 <xref linkend="developers"> and in <xref linkend="delegation">)
1812 that you need to try and balance your responsibility and power to
1813 make what you think are the best technical decisions with the
1814 fact that you will lose support from other developers if you seem
1815 like you are on a power trip or being overly bossy or possessive
1816 of the community's project. I recommend that you keep these three
1817 major concepts in mind when rejecting patches (or other changes):
1821 <title>Bring it to the community</title>
1823 One of the best ways of justifying a decision to reject a patch
1824 and working to not seem like you keep an iron grip on your
1825 project is by not making the decision alone at all. It might
1826 make sense to turn over larger proposed changes or more
1827 difficult decisions to a development mailing list where they can
1828 be discussed and debated. There will be some patches (bug fixes,
1829 etc.) which will definitely be accepted and some that you feel
1830 are so off base that they do not even merit further
1831 discussion. It is those that fall into the gray area between
1832 these two groups that might merit a quick forward to a mailing
1837 I recommend this process wholeheartedly. As the project
1838 maintainer you are worried about making the best decision for
1839 the project, for the project's users and developers, and for
1840 yourself as a responsible project leader. Turning things over to
1841 an email list will demonstrate your own responsibility and
1842 responsive leadership as it tests and serves the interests of
1843 your software's community.
1848 <title>Technical issues are not always good justification</title>
1850 Especially toward the beginning of your project's life, you
1851 will find that many changes are difficult to implement,
1852 introduce new bugs, or have other technical problems. Try to see
1853 past these. Especially with added functionality, good ideas do
1854 not always come from good programmers. Technical merit is a
1855 valid reason to postpone an application of a patch but it is not
1856 always a good reason to reject a change outright. Even small
1857 changes are worth the effort of working with the developer
1858 submitting the patch to iron out bugs and incorporate the change
1859 if you think it seems like a good addition to your project. The
1860 effort on your part will work to make your project a community
1861 project and it will pull a new or less experienced developer
1862 into your project and even teach them something that might help
1863 them in making their next patch.
1868 <title>Common courtesy</title>
1870 It should go without saying but, <emphasis>above all and in all
1871 cases, just be nice.</emphasis> If someone has an idea and cares
1872 about it enough to write some code and submit a patch, they
1873 care, they are motivated, and they are already involved. Your
1874 goal as the maintainer is make sure they submit again. They may
1875 have thrown you a dud this time but next time may be the idea or
1876 feature that revolutionizes your project.
1880 It is your responsibility to first justify your choice to not
1881 incorporate their change clearly and concisely. Then thank
1882 them. Let them know that you a appreciate their help and feel
1883 horrible that you can't incorporate their change. Let them know
1884 that you look forward to their staying involved and you hope
1885 that the next patch or idea meshes better with your project
1886 because you appreciate their work and want to see it in your
1887 application. If you have ever had a patch rejected after putting
1888 a large deal of time, thought, and energy into it, you remember
1889 how it feels and it feels bad. Keep this in mind when you have
1890 to let someone down. It's never easy but you need to do
1891 everything you can to make it as not-unpleasant as possible.
1897 <!-- Section2: branches -->
1899 <sect2 id="branches">
1900 <title>Stable and Development Branches</title>
1903 The idea of stable and development branches has already been
1904 described briefly in <xref linkend="chooseversioning"> and in
1905 <xref linkend="delegatebranch">. These allusions attest to some of
1906 the ways that multiple branches can affect your software. Branches
1907 can let you avoid (to some extent) some of the problems around
1908 rejecting patches (as described in <xref linkend="patching">) by
1909 allowing you to temporarily compromise the stability of your
1910 project without affecting those users who need that stability.
1914 The most common way of branching your project is to have one
1915 branch that is stable and one that is for development. This is the
1916 model followed by the Linux kernel that is described in <xref
1917 linkend="chooseversioning">. In this model, there is
1918 <emphasis>always</emphasis> one branch that is stable and always
1919 one that is in development. Before any new release, the
1920 development branch goes into a <quote>feature freeze</quote> as
1921 described in <xref linkend="freezing"> where major changes and
1922 added features are rejected or put on hold under the development
1923 kernel is released as the new stable branch and major development
1924 resumes on the development branch. Bug fixes and small changes
1925 that are unlikely to have any large negative repercussions are
1926 incorporated into the stable branch as well as the development
1931 Linux's model provides an extreme example. On many projects, there is no
1932 need to have two versions constantly available. It may make sense to
1933 have two versions only near a release. The Debian project has
1934 historically made both a stable and an unstable distribution
1935 available but has expanded to this to include: stable, unstable,
1936 testing, experimental, and (around release time) a frozen
1937 distribution that only incorporates bug fixes during the
1938 transition from unstable to stable. There are few projects whose
1939 size would necessitate a system like Debian's but this use of
1940 branches helps demonstrate how they can be used to balance
1941 consistent and effective development with the need to make regular
1942 and usable releases.
1946 In trying to set up a development tree for yourself, there are
1947 several things that might be useful to keep in mind:
1954 <term>Minimize the number of branches</term>
1956 <para>Debian may be able to make good use of four or five
1957 branches but it contains gigabytes of software in over 5000
1958 packages compiled for 5-6 different architectures. For you,
1959 two is probably a good ceiling. Too many branches will confuse
1960 your users (I can't count how many times I had to describe
1961 Debian's system when it only had 2 and sometimes 3 branches!),
1962 potential developers and even yourself. Branches can help but
1963 they come at a cost so use them very sparingly.</para>
1968 <term>Make sure that all your different branches are explained</term>
1970 <para>As I mentioned in the preceding paragraph, different
1971 branches <emphasis>will</emphasis> confuse your users. Do
1972 everything you can to avoid this by clearly explaining the
1973 different branches in a prominent page on your website and in a
1974 README file in the <acronym>FTP</acronym> or
1975 web directory.</para>
1978 I might also recommend against a mistake that I think Debian
1979 has made. The terms <quote>unstable,</quote>
1980 <quote>testing,</quote> and <quote>experimental</quote> are
1981 vague and difficult to rank in order of stability (or
1982 instability as the case may be). Try explaining to someone
1983 that <quote>stable</quote> actually means <quote>ultra
1984 stable</quote> and that <quote>unstable</quote> doesn't
1985 actually include any unstable software but is really stable
1986 software that is untested as a distribution.
1990 If you are going to use branches, especially early on, keep in
1991 mind that people are conditioned to understand the terms
1992 <quote>stable</quote> and <quote>development</quote> and you
1993 probably can't go wrong with this simple and common division of
2000 <term>Make sure all your branches are always available</term>
2002 <para>Like a lot of this document, this should probably should
2003 go without saying but experience has taught me that it's not
2004 always obvious to people. It's a good idea to physically split
2005 up different branches into different directories or directory
2006 trees on your <acronym>FTP</acronym> or web site. Linux
2007 accomplishes this by having kernels in a v2.2 and a v2.3
2008 subdirectory where it is immediately obvious (after you know
2009 their version numbering scheme) which directory is for the most
2010 recent stable and the current development releases. Debian
2011 accomplishes this by naming all their distribution with names
2012 (i.e. woody, potato, etc.) and then changing symlinks named
2013 <quote>stable,</quote> <quote>unstable</quote> and
2014 <quote>frozen</quote> to point to which ever distribution (by
2015 name) is in whatever stage. Both methods work and there are
2016 others. In any case, it is important that different branches
2017 are always available, are accessible from consistent locations,
2018 and that different branches are clearly distinguished from each
2019 other so your users know exactly what they want and where to
2029 <!-- Section2: otherdev -->
2031 <sect2 id="otherdev">
2032 <title>Other Project Management issues</title>
2034 There are more issues surrounding interaction with developers in a
2035 free software project that I can not touch on in great detail in a
2036 HOWTO of this size and scope. Please don't hesitate to contact me if you see
2037 any major omissions.
2041 Other smaller issues that are worth mentioning are:
2044 <sect3 id="freezing">
2045 <title>Freezing</title>
2047 For those projects that choose to adopt a split development model
2048 (<xref linkend="branches">), freezing is a concept that is worth
2049 becoming familiar with.
2053 Freezes come in two major forms. A <quote>feature freeze</quote>
2054 is a period when no significant functionality is added to a
2055 program. It is a period where established functionality (even
2056 skeletons of barely working functionality) can be improved and
2057 perfected. It is a period where bugs are fixed. This type of
2058 freeze is usually applied some period (a month or two) before a
2059 release. It is easy to push a release back as you wait for
2060 <quote>one more feature</quote> and a freeze helps to avoid this
2061 situation by drawing the much needed line in the sand. It gives
2062 developers room they need to get a program ready for release.
2066 The second type of freeze is a <quote>code freeze</quote> which
2067 is much more like a released piece of software. Once a piece of
2068 software has entered a <quote>code freeze,</quote> all changes to
2069 the code are discouraged and only changes that fix known bugs
2070 are permitted. This type of freeze usually follows a
2071 <quote>feature freeze</quote> and directly precedes a
2072 release. Most released software is in what could be interpreted
2073 as a sort of high level <quote>code freeze.</quote>
2077 Even if you never choose to appoint a release manager (<xref
2078 linkend="releasemanager">), you will have an easier time
2079 justifying the rejection or postponement of patches (<xref
2080 linkend="patching">) before a release with a publicly stated
2087 <title>Forks</title>
2089 I wasn't sure about how I would deal with forking in this
2090 document (or if I would deal with forking at all). A fork is when
2091 a group of developers takes code from a free software project and
2092 actually starts a brand new free software project with it. The
2093 most famous example of a fork was between Emacs and XEmacs. Both
2094 emacsen are based on an identical code-base but for technical,
2095 political, and philosophical reasons, development was split into
2096 two projects which now compete with each other.
2100 The short version of the fork section is, <emphasis>don't do
2101 them.</emphasis> Forks force developers to choose one project to
2102 work with, cause nasty political divisions, and redundancy of
2103 work. Luckily, usually the threat of the fork is enough to scare
2104 the maintainer or maintainers of a project into changing the way
2105 they run their project.
2109 In his chapter on <quote>The Open Source Process,</quote> Karl
2110 Fogel describes how to do a fork if you absolutely must. If you
2111 have determined that is absolutely necessary and that the
2112 differences between you and the people threatening to fork are
2113 absolutely unresolvable, I recommend Fogel's book as a good place
2119 <!-- Section1: users -->
2122 <title>Maintaining a Project: Interacting with Users</title>
2124 <primary>fswd!users</primary>
2128 If you've worked your way up to here, congratulations, you are
2129 nearing the end of this document. This final section describes some
2130 of the situations in which you, in your capacity as project
2131 maintainer, will be interacting with users. It gives some
2132 suggestions on how these situations might be handled effectively.
2136 Interacting with users is difficult. In our discussion of
2137 interaction with developers, the underlying assumption is that in a
2138 free software project, a project maintainer must constantly strive to
2139 attract and keep developers who can easily leave at any time.
2143 Users in the free software community are different than developers
2144 and are also different than users in the world of proprietary
2145 software and they should be treated differently than either
2146 group. Some ways in which the groups differ significantly follow:
2153 <para>The lines between users and developers are blurred in ways
2154 that is totally foreign to any proprietary development
2155 model. Your users are often your developers and vice
2160 <para>In the free software world, you are often your users' only
2161 choice. Because there is such an emphasis on not replicating the
2162 work of others in the free software community and because the
2163 element of competition present in the propriety software model is
2164 absent (or at least in an extremely different form) in the free
2165 software development model, you will probably be the only project
2166 that does what you do (or at least the only one that does what
2167 you do in the way that you do it). This means your responsiveness
2168 to your users is even more important than in the proprietary
2169 software world.</para>
2173 <para>In an almost paradoxical situation, free software projects
2174 have less immediate or dire consequences for ignoring their users
2175 altogether. It is also often easier to do. Because you don't
2176 usually need to compete with another product, chances are good
2177 that you will not be scrambling to gain the features of your
2178 competitor's newest program. This means that your development
2179 process will have to be directed either internally, by a
2180 commitment to your users, or through both.</para>
2186 Trying to tackle this unique situation can only be done
2187 indirectly. Developers and maintainers need to listen to users and
2188 to try and be as responsive as possible. A solid knowledge of the
2189 situation recounted above is any free software developer's best tool
2190 for shifting his development or leadership style to fit the unique
2191 process of free software project management. This chapters will try and
2192 introduce some of the more difficult or important points in any
2193 projects interactions with users and give some hints on how to
2197 <!-- Section2: testing -->
2199 <sect2 id="testing">
2200 <title>Testing and Testers</title>
2203 In addition to your users being your developers, they are also
2204 (and perhaps more commonly) your testers. Before I get flamed, I
2205 should rephrase my sentence: <emphasis>some of your
2206 users</emphasis> (those who explicitly volunteer) are your
2211 It is important that this distinction be made early on because not
2212 all of your users want to be testers. Many users want to use
2213 stable software and don't care if they don't have the newest,
2214 greatest software with the latest, greatest features. These users
2215 except a stable, tested piece of software without major or obvious
2216 bugs and will be angry if they find themselves testing. This is
2217 yet another way in which a split development model (as mentioned
2218 in <xref linkend="branches">) might come in handy.
2223 url="http://news.linuxprogramming.com/news_story.php3?ltsn=2000-10-31-001-05-CD">Managing
2224 Projects the Open Source Way</ulink></quote> describes what a
2225 good test should look for:
2230 <term>Boundary conditions</term>
2233 <para>Maximum buffer lengths, data conversions, upper/lower
2234 boundary limits, and so on.</para>
2239 <term>Inappropriate behavior</term>
2242 <para>Its a good idea to find out what a program will do if a
2243 user hands it a value it isn't expecting, hits the wrong button,
2244 etc. Ask yourself a bunch of <quote>what if</quote> questions
2245 and think of anything that <emphasis>might</emphasis> fail or
2246 <emphasis>might</emphasis> go wrong and find out what your
2247 program would do in those cases.</para>
2252 <term>Graceful failure</term>
2255 <para>The answer to a number of the <quote>what if</quote>
2256 questions above is probably <quote>failure</quote> which is
2257 often the only answer. Now make sure that it happens
2258 nicely. Make sure that when it crashes, there is some indication
2259 of why it crashed or failed so that the user or developer
2260 understands whats going on.</para>
2266 <term>Standards conformance</term>
2269 <para>If possible, make sure your programs conforms to
2270 standards. If it's interactive, don't be too creative with
2271 interfaces. If it is non-interactive, make sure it communicates
2272 over appropriate and established channels with other programs
2273 and with the rest of the system.</para>
2280 <title>Automated testing</title>
2282 For many programs, many common mistakes can be caught by
2283 automated means. Automated tests tend to be pretty good at
2284 catching errors that you've run into several times before or
2285 the things you just forget. They are not very good at finding
2286 errors, even major ones, that are totally unforeseen.
2290 CVS comes with a Bourne shell script called sanity.sh that is
2291 worth looking at. Debian uses a program called lintian that
2292 checks Debian packages for all of the most common errors. While
2293 use of these scripts may not be helpful, there is a host of other
2294 sanity checking software on the net that may be applicable (feel
2295 free to email me any recommendations). None of these will create
2296 a bug-free release but they will avoid at least some major
2297 oversights. Finally, if your programs become a long term
2298 endeavor, you will find that there are certain errors that you
2299 tend to make over and over. Start a collection of scripts that
2300 check for these errors to help keep them out of future releases.
2305 <title>Testing by testers</title>
2307 For any program that depends on user interactivity, many bugs
2308 will only be uncovered through testing by users actually clicking
2309 the keys and pressing the mouse buttons. For this you need
2310 testers and as many as possible.
2314 The most difficult part of testing is finding testers. It's
2315 usually a good tactic to post a message to a relevant mailing
2316 list or news group announcing a specific proposed release date
2317 and outlining the functionality of your program. If you put some
2318 time into the announcement, you are sure to get a few responses.
2322 The second most difficult part of testing is
2323 <emphasis>keeping</emphasis> your testers and keeping them
2324 actively involved in the testing process. Fortunately, there are
2325 some tried and true tactics that can applied toward this end:
2332 <term>Make things simple for your testers</term>
2334 <para>Your testers are doing you a favor so make it as easy as
2335 possible for them. This means that you should be careful to
2336 package your software in a way that is easy to find, unpack,
2337 install, and uninstall. This also means you should explain
2338 what you are looking for to each tester and make the means for
2339 reporting bugs simple and well established. The key is to
2340 provide as much structure as possible to make your testers'
2341 jobs easy and to maintain as much flexibility as possible for
2342 those that want to do things a little differently.</para>
2347 <term>Be responsive to your testers</term>
2349 <para>When your testers submit bugs, respond to them and
2350 respond quickly. Even if you are only responding to tell them
2351 that the bug has already been fixed, quick and consistent
2352 responses make them feel like their work is heard, important,
2353 and appreciated.</para>
2358 <term>Thank your testers</term>
2360 <para>Thank them personally each time they send you
2361 patch. Thank them publicly in the documentation and the about
2362 section of your program. You appreciate your testers and your
2363 program would not be possible without their help. Make sure
2364 they know it. Publicly, pat them on the back to make sure the rest of
2365 the world knows it too. It will be appreciated more than you
2376 <!-- Section2: support -->
2378 <sect2 id="support">
2379 <title>Setting up Support Infrastructure</title>
2382 While testing is important, the large part of your interactions
2383 and responsibility to your users falls under the category of
2384 support. The best way to make sure your users are adequately
2385 supported in using your program is to set up a good infrastructure
2386 for this purpose so that your developers and users help each other
2387 and less of the burden falls on you. This way, people will also
2388 get quicker and better responses to their questions. This
2389 infrastructure comes in several major forms:
2393 <title>Documentation</title>
2395 It should not come as any surprise that the key element to any
2396 support infrastructure is good documentation. This topic was
2397 largely covered in <xref linkend="documentation"> and will not be
2402 <sect3 id="mailinglists">
2403 <title>Mailing lists</title>
2405 Aside from documentation, effective mailing lists will be your
2406 greatest tool in providing user support. Running a mailing list
2407 well is more complicated than installing mailing list software
2412 <title>Separate lists</title>
2415 A good idea is too separate your user and development mailing
2416 lists (perhaps into project-user@host and project-devel@host)
2417 and enforce the division. If people post a development question
2418 onto -user, politely ask them to repost it onto -devel and vise
2419 versa. Subscribe yourself to both groups and encourage all
2420 primarily developers to do the same.
2424 This system provides so that no one person is stuck doing all of
2425 the support work and works so that users learn more about the
2426 program, they can help newer users with their questions.
2431 <title>Choose mailing list software well</title>
2433 Please don't make the selection of mailing list software
2434 impulsively. Please consider easy accessibility by users without
2435 a lot of technical experience so you want to be as easy as
2436 possible. Web accessibility to an archive of the list is also
2441 The two biggest free software mailing list programs are <ulink
2442 url="http://www.greatcircle.com/majordomo/">majordomo</ulink>
2443 and <ulink url="http://www.list.org/">GNU Mailman</ulink>. A
2444 long time advocate of majordomo, I would now recommend any
2445 project choose GNU Mailman. It fulfills the criteria listed
2446 above and makes it easier. It provides a good mailing
2447 list program for a free software project maintainer as opposed
2448 to a good mailing list application for a mailing list
2453 There are other things you want to take into consideration in
2454 setting up your list. If it is possible to gate your mailing
2455 lists to Usenet and provide it in digest form as well as
2456 making them accessible on the web, you will please some users
2457 and work to make the support infrastructure slightly more
2464 <title>Other support ideas</title>
2467 A mailing list and accessible documentation are far from all you
2468 can do to set up good user support infrastructure. Be
2469 creative. If you stumble across something that works well, email me
2470 and I'll include it here.
2474 <title>Make your self accessible</title>
2476 You can not list too few methods to reach you. If you hang out
2477 in an <acronym>IRC</acronym> channel, don't hesitate to list it
2478 in your projects documentation. List email and snailmail
2479 addresses, and ways to reach you via <acronym>ICQ</acronym>,
2480 <acronym>AIM</acronym>, or Jabber if they apply.
2485 <title>Bug management software</title>
2487 For many large software projects, use of bug management software
2488 is essential to keep track of which bugs have been fixed, which
2489 bugs have not been fixed, and which bugs are being fixed by
2490 which people. Debian uses the <ulink
2491 url="http://bugs.debian.org">Debian Bug Tracking System</ulink>
2492 (<acronym>BTS</acronym>) although it may not be best choice for
2493 every project (it seems to currently be buckling under its own
2494 weight) As well as a damn good web browser, the Mozilla project
2495 has spawned a sub-project resulting in a bug tracking system
2497 url="http://www.mozilla.org/projects/bugzilla/">bugzilla</ulink>
2498 which has become extremely possible and which I like a lot.
2502 These systems (and others like them) can be unwieldy so
2503 developers should be careful to not spend more time on the bug
2504 tracking system than on the bugs or the projects themselves. If
2505 a project continues to grow, use of a bug tracking system can
2506 provide an easy standard avenue for users and testers to report
2507 bugs and for developers and maintainers to fix them and track
2508 them in an orderly fashion.
2514 <!-- Section2: releasing -->
2516 <sect2 id="releasing">
2517 <title>Releasing Your Program</title>
2520 As mentioned earlier in the HOWTO, the first rule of releasing is,
2521 <emphasis>release something useful.</emphasis> Non-working or
2522 not-useful software will not attract anyone to your
2523 project. People will be turned off of your project and will be likely
2524 to simply gloss over it next time they see a new version
2525 announced. Half-working software, if useful, will intrigue people,
2526 whet their appetites for versions to come, and encourage them to
2527 join the development process.
2531 <title>When to release</title>
2534 Making the decision to release your software for the first time
2535 is an incredibly important and incredibly stressful decision. But
2536 it needs to done. My advice is to try and make something that
2537 is complete enough to be usable and incomplete enough to allow
2538 for flexibility and room for imagination by your future
2539 developers. It's not an easy decision. Ask for help on a local
2540 Linux User Group mailing list or from a group of developer
2545 One tactic is to first do an <quote>alpha</quote> or
2546 <quote>beta</quote> release as described below in <xref
2547 linkend="alphabeta">. However, most of the guidelines described
2552 <emphasis>When you feel in your gut that it is time and you feel
2553 you've weighed the situation well several times, cross your
2554 fingers and take the plunge.</emphasis>
2558 After you've released for the first time, knowing when to release
2559 becomes less stressful, but just as difficult to gauge. I like
2560 the criteria offered by Robert Krawitz in his article, <ulink
2561 url="http://www.advogato.org/article/196.html"><quote>Free
2562 Software Project Management</quote></ulink> for maintaining a
2563 good release cycle. He recommends that you ask yourself,
2564 <quote>does this release...</quote>
2570 <para>Contain sufficient new functionality or bug fixes to be
2571 worth the effort.</para>
2575 <para>Be spaced sufficiently far apart to allow the user time
2576 to work with the latest release.</para>
2580 <para>Be sufficiently functional so that the user can get work
2581 done (quality).</para>
2587 If the answer is yes to all of these questions, its probably time
2588 for a release. If in doubt, remember that asking for advice can't
2594 <title>How to release</title>
2597 If you've followed the guidelines described in this HOWTO up
2598 until this point, the mechanics of doing a release are going to
2599 be the easy part of releasing. If you have set up consistent
2600 distribution locations and the other infrastructure described in
2601 the preceding sections, releasing should be as simple as building
2602 the package, checking it once over, and uploading it into the
2603 appropriate place and then making your website reflect the
2608 <sect3 id="alphabeta">
2609 <title>Alpha, beta, and development releases</title>
2612 When contemplating releases, it worth considering the fact that
2613 not every release needs to be a full numbered release. Software
2614 users are accustomed to pre-releases but you must be careful to
2615 label these releases accurately or they will cause more problems then
2620 The observation is often made that many free software developers
2621 seem to be confused about the release cycle. <quote><ulink
2622 url="http://news.linuxprogramming.com/news_story.php3?ltsn=2000-10-31-001-05-CD">Managing
2623 Projects the Open Source Way</ulink></quote> suggests that you memorize
2624 the phrase, <quote>Alpha is not Beta. Beta is not Release</quote>
2625 and I'd agree that tis is a probably a good idea.
2632 <term>alpha releases</term>
2634 <para>Alpha software is feature-complete but sometimes only
2635 partially functional.</para>
2637 <para>Alpha releases are expected to be unstable, perhaps a
2638 little unsafe, but definitely usable. They
2639 <emphasis>can</emphasis> have known bugs and kinks that have
2640 yet to be worked out. Before releasing an alpha, be sure to
2641 keep in mind that <emphasis>alpha releases are still
2642 releases</emphasis> and people are not going to be expecting a
2643 nightly build from the CVS source. An alpha should work and
2644 have minimal testing and bug fixing already finished.</para>
2649 <term>beta releases</term>
2651 <para>Beta software is feature-complete and functional, but is
2652 in the testing cycle and still has a few bugs left to be
2655 <para>Beta releases are general expected to be usable and
2656 slightly unstable, although definitely <emphasis>not
2657 unsafe.</emphasis> Beta releases usually preclude a full
2658 release by under a month. They can contain small known bugs
2659 but no major ones. All major functionality should be fully
2660 implemented although the exact mechanics can still be worked
2661 out. Beta releases are great tool to whet the appetites of
2662 potential users by giving them a very realistic view of where
2663 your project is going to be in the very near future and can
2664 help keep interest by giving people
2665 <emphasis>something.</emphasis></para>
2670 <term>development releases</term>
2672 <para><quote>Development release</quote> is much a more vague
2673 term than <quote>alpha</quote> or <quote>beta</quote>. I
2674 usually choose to reserve the term for discussion of a
2675 development branch although there are other ways to use the
2676 term. So many in fact, that I feel the term has been
2677 cheapened. The popular window manager <ulink
2678 url="http://www.enlightenment.org">Enlightenment</ulink> has
2679 released <emphasis>nothing but</emphasis> development
2680 releases. Most often, the term is used to describe releases
2681 that are not even alpha or beta and if I were to release a
2682 pre-alpha version of a piece of software in order to keep
2683 interest in my project alive, this is probably how I would
2684 have to label it.</para>
2694 <!-- Section2: announcing -->
2696 <sect2 id="announcing">
2697 <title>Announcing Your Project</title>
2700 Well, you've done it. You've (at least for the purposes of this
2701 HOWTO) designed, built, and released your free software
2702 project. All that is left is for you to tell the world so they
2703 know to come and try it out and hopefully jump on board with
2704 development. If everything is in order as described above, this
2705 will be a quick and painless process. A quick announcement is all
2706 that it takes to put yourself on the free software community's
2711 <title>Mailing lists and Usenet</title>
2713 <para>Announce your software on Usenet's <ulink
2714 url="news:comp.os.linux.announce">comp.os.linux.announce</ulink>. If
2715 you only announce your software in two places, have it be c.o.l.a
2716 and freshmeat.</para>
2719 However, email is still the way that most people on the Internet
2720 get their information. Its a good idea to send a message
2721 announcing your program to any relevant mailing list you know of
2722 and any other relevant Usenet discussion groups.</para>
2724 <para>Karl Fogel recommends that use you simple subject
2725 describing the fact that the message is an announcement, the name
2726 of the program, the version, and a half-line long description of
2727 its functionality. This way, any interested user or developer
2728 will be immediately attracted to your announcement. Fogel's
2732 <screen>Subject: ANN: aub 1.0, a program to assemble Usenet binaries</screen>
2735 The rest of the email should describe the programs functionality
2736 quickly and concisely in no more than two paragraphs and should
2737 provide links to the projects webpage and direct links to
2738 downloads for those that want to try it right away. This form
2739 will work for both Usenet and mailing list posts.
2743 You should repeat this announcement process consistently in the
2744 same locations for each subsequent release.
2749 <title>freshmeat.net</title>
2751 Mentioned earlier in <xref linkend="evalwhere">, in today's free
2752 software community, announcements of your project on freshmeat
2753 are almost more important than announcements on mailing lists.
2757 Visit the <ulink url="http://freshmeat.net">freshmeat.net
2758 website</ulink> or their <ulink
2759 url="http://freshmeat.net/add-project/">submit project
2760 page</ulink> to post your project onto their site and into their
2761 database. In addition to a large website, freshmeat provides a
2762 daily newsletter that highlights all the days releases and
2763 reaches a huge audience (I personally skim it every night for any
2764 interesting new releases).
2769 <title>Project Mailing List</title>
2771 <para>If you've gone ahead and created mailing lists for your
2772 project, you should always announce new versions on these
2773 lists. I've found that for many projects, users request a very
2774 low-volume announce only mailing list to be notified when new
2775 versions are released. freshmeat.net now allows users to subscribe
2776 to a particular project so they receive emails every time a new
2777 version is announced through their system. It's free and it can
2778 stand in for an announce-only mailing list. In my opinion, it
2787 <title>Printed Books</title>
2792 <surname>Fogel</surname>
2793 <firstname>Karl</firstname>
2796 <title>Open Source Development with CVS</title>
2799 <publishername>Coriolois Open Press</publishername>
2801 <pubdate>1999</pubdate>
2803 <isbn>1-57610-490-7</isbn>
2807 Fogel's <quote>guide to using CVS in the free software
2808 world</quote> is much more than its subtitle. In the publisher's
2809 own words: <quote><emphasis>Open Source Development with
2810 CVS</emphasis> is one of the first books available that teaches
2811 you development and implementation of Open Source
2812 software.</quote> It also includes the best reference and
2813 tutorial to CVS I have ever seen. It is the book that was
2814 <emphasis>so good</emphasis> that it prompted me to write this
2815 HOWTO because I thought the role it tried to serve was so
2816 important and useful. Please check it or buy it if you can and
2817 are seriously interested in running a free software project.
2826 <surname>Lessig</surname>
2827 <firstname>Lawrence</firstname>
2830 <title>Code and Other Laws of Cyberspace</title>
2833 <publishername>Basic Books</publishername>
2835 <pubdate>2000</pubdate>
2837 <isbn>0-465-03913-8</isbn>
2841 While it only briefly talks about free software (and does it by
2842 tiptoeing around the free software/open source issue with the
2843 spineless use of the term <quote>open code</quote> that only a
2844 lawyer could coin), Lessig's book is brilliant. Written by a
2845 lawyer, it talks about how regulation on the Internet is not
2846 done with law, but with the code itself and how the nature of
2847 the code will determine the nature of future freedoms. In
2848 addition to being a quick and enjoyable read, it gives some
2849 cool history and describes how we <emphasis>need</emphasis>
2850 free software in a way more powerfully than anything I've read
2852 url="http://www.gnu.org/philosophy/right-to-read.html">RMS's
2853 <quote>Right to Read.</quote></ulink>
2862 <surname>Raymond</surname>
2863 <firstname>Eric</firstname>
2866 <title>The Cathedral and the Bazaar</title>
2867 <subtitle>Musings on Linux and Open Source by an Accidental Revolutionary</subtitle>
2870 <publishername>O'Reilly</publishername>
2872 <pubdate>1999</pubdate>
2874 <isbn>1-56592-724-9</isbn>
2877 Although I have to honestly say that I am not the ESR fan that
2878 I used to be, this book proved invaluable in getting me where I
2879 am today. The essay that gives the book its title does a good
2880 job of sketching the free software process and does an an
2881 amazing job of making an argument for free software/open source
2882 development as a road to better software. The rest of the book
2883 has other of ESR's articles, which for the most part are posted
2884 on his website. Still, it's nice thing to own in hard copy and
2885 something that every free software/open source hacker should
2894 <title>Web-Accessible Resources</title>
2897 This is a list of the web resources pertaining to this HOWTO that
2898 I've found most helpful in compiling this information. If you know
2899 of others that would help, please don't hesitate to email me at
2900 <email>mako@debian.org</email> and we can look into getting it
2901 added to the list and represented in the HOWTO.
2905 I'd recommend that any free software developer (or potential one)
2906 skim through these sites because they have each have a lot to say.
2913 <surname>Dafermos</surname>
2914 <firstname>George</firstname>
2915 <othername>N</othername>
2918 <title><ulink url="http://firstmonday.org/issues/issue6_11/dafermos/">Management and Virtual Decentralized Networks: The Linux Project</ulink></title>
2921 <para>Since the paper includes its own abstract, I thought I
2922 would include it here verbatim:</para>
2924 <para><blockquote><para>This paper examines the latest of
2925 paradigms - the Virtual Network(ed) Organisation - and whether
2926 geographically dispersed knowledge workers can virtually
2927 collaborate for a project under no central
2928 planning. Co-ordination, management and the role of knowledge
2929 arise as the central areas of focus. The Linux Project and its
2930 development model are selected as a case of analysis and the
2931 critical success factors of this organisational design are
2932 identified. The study proceeds to the formulation of a
2933 framework that can be applied to all kinds of virtual
2934 decentralised work and concludes that value creation is
2935 maximized when there is intense interaction and uninhibited
2936 sharing of information between the organisation and the
2937 surrounding community. Therefore, the potential success or
2938 failure of this organisational paradigm depends on the degree
2939 of dedication and involvement by the surrounding
2940 community.</para></blockquote></para>
2942 <para>This paper was referred to me in my capacity as author of
2943 this HOWTO and I was very impressed. It's written by a graduate
2944 student in management and I think it succeeds at evaluating the
2945 Linux project as an example of a new paradigm in management--one
2946 that <emphasis>you</emphasis> will be be placing yourself at the
2947 center of in your capacity as maintainer of a free software
2950 <para>As a developer trying to control an application and guide
2951 it to success in the free software world, I'm not sure how
2952 useful Dafermos's argument is. It does however, provide a
2953 theoretical justification for my HOWTO--free software project
2954 management <emphasis>is</emphasis> a different creature than
2955 proprietary software project management. If you are interested
2956 in the conceptual and theoretical ways that free software
2957 project management differs from other types of management, this
2958 is a great paper to read. If this paper answers questions of
2959 <quote>how?</quote>, Dafermos answers the (more difficult to
2960 defend) questions of <quote>why?</quote> and does a very good
2971 <surname>Gabriel</surname>
2972 <firstname>Richard</firstname>
2976 url="http://www.jwz.org/doc/worse-is-better.html">The Rise of
2977 <quote>Worse is Better</quote></ulink></title>
2981 A well written article although I think the title may have
2982 confused as many people as the rest of the essay helped. It
2983 offers a good description of how to design programs that will
2984 succeed and stay maintainable as they grow.
2993 <surname>Manley</surname>
2994 <firstname>Montey</firstname>
2998 url="http://news.linuxprogramming.com/news_story.php3?ltsn=2000-10-31-001-05-CD">Managing
2999 Projects the Open Source Way</ulink></title>
3002 <publishername><ulink
3003 url="http://www.linuxprogramming.com">Linux
3004 Programming</ulink></publishername>
3006 <pubdate>Oct 31, 2000</pubdate>
3010 In one of the better articles on the subject that I've read,
3011 Monty sums up some of the major points I touch on including:
3012 starting a project, testing, documentation, organizing a team and
3013 leadership, and several other topics. While more opinionated that
3014 I try to be, I think its an important article that I found very
3015 helpful in writing this HOWTO. I've tried to cite him in
3016 the places where I borrowed from him most.
3020 I have problems much of this piece and I recommend you read
3021 <xref linkend="krawitz"> at the same time you read Monty's
3022 article for a good critique.
3028 <biblioentry id="esrhowto">
3031 <surname>Raymond</surname>
3032 <firstname>Eric</firstname>
3033 <othername>Steven</othername>
3036 <title><ulink url="http://www.tldp.org/HOWTO/Software-Release-Practice-HOWTO/index.html">Software Release Practice HOWTO</ulink></title>
3040 <para>At first glance, ESR's release practice HOWTO seems to
3041 share a lot of terrain with this document. Upon closer
3042 examination, the differences become apparent but they are
3043 closely related. His document, read in conjunction with mine,
3044 will give a reader a good picture of how to go about managing a
3045 project. ESR's HOWTO goes into a bit more detail on how to write
3046 and what languages to write in. He tends to give more specific
3047 instructions and checklists (<quote>name this file this, not
3048 this</quote>) while this HOWTO speaks more conceptually. There
3049 are several sections that are extremely similar. It's also
3050 <emphasis>much</emphasis> shorter.</para>
3052 <para>My favorite quote from his HOWTO is: <quote>"Managing a
3053 project well when all the participants are volunteers presents
3054 some unique challenges. This is too large a topic to cover in a
3055 HOWTO.</quote> Oh really? Perhaps I just do a poor job.</para>
3062 <biblioentry id="cvsbestpractices">
3065 <surname>Venugopalan</surname>
3066 <firstname>Vivek</firstname>
3069 <title><ulink url="http://www.magic-cauldron.com/cm/cvs-bestpractices/index.html">CVS Best Practices</ulink></title>
3073 <para>Venugopalan provides one of the best essays on
3074 effective use of CVS that I've come across. It is written for
3075 people who already have a good knowledge of CVS. In the chapter
3076 on branching, he describes when and how to branch but gives no
3077 information on what CVS commands you should use to do this. This
3078 is fine (technical CVS HOWTO have been written) but CVS newbies
3079 will want to spend some time with Fogel's reference before they
3080 will find this one very useful.</para>
3082 <para>Venugopalan creates checklists of things to do before,
3083 after, and around releases. It's definitely worth a read through
3084 as most of his ideas will save tons of developer head aches over
3085 any longer period of time.</para>
3094 <title>Advogato Articles</title>
3097 I've found that one of the best resources that any free software
3098 developer has at his or her disposal is Advogato.org. If you haven't
3099 yet had a chance to visit <ulink url="http://www.advogato.org">the
3100 website</ulink>, do.
3104 I have spent a huge amount of time on Advogato and I've gone
3105 through and provided links to the articles that I think might be
3106 of particular interest to anyone reading this HOWTO. I think that
3107 skimming through these links can be helpful and I promise that if
3108 you do, you'll learn a lot. You will learn that my idea of how a
3109 free software project should be run is not the
3110 <emphasis>only</emphasis> idea. I think that's important.
3114 If nothing else, there is <emphasis>way</emphasis> more
3115 information on that website than I could ever fit into, or
3116 reference from this HOWTO. I have listed what I think are the most
3117 relevant articles here with short descriptions that I've written.
3124 <surname>Hindle</surname>
3125 <firstname>Stephen</firstname>
3128 <title><ulink url="http://www.advogato.org/article/262.html">'Best Practices' for Open Source?</ulink></title>
3131 <publishername><ulink url="http://www.advogato.org">Advogato</ulink></publishername>
3133 <pubdate>March 21, 2001</pubdate>
3137 Touching mostly on programming practice (as most articles on
3138 the subject usually do), the article talks a little about
3139 project management (<quote>Use it!</quote>) and a bit about
3140 communication within a free software project.
3149 <surname>Cohen</surname>
3150 <firstname>Bram</firstname>
3154 url="http://www.advogato.org/article/258.html"></ulink>How to
3155 Write Maintainable Code</title>
3158 <publishername><ulink url="http://www.advogato.org">Advogato</ulink></publishername>
3160 <pubdate>March 15, 2001</pubdate>
3164 This article touches upon the "writing maintainable code"
3165 discussion that I try hard to avoid in my HOWTO. It's one of
3166 the better (and most diplomatic) articles on the subject that
3172 <biblioentry id="krawitz">
3175 <surname>Krawitz</surname>
3176 <firstname>Robert</firstname>
3179 <title><ulink url="http://www.advogato.org/article/196.html">Free
3180 Source Project Management</ulink></title>
3183 <publishername><ulink url="http://www.advogato.org">Advogato</ulink></publishername>
3185 <pubdate>November 4, 2000</pubdate>
3189 This article made me happy because it challenged many of the
3190 problems that I had with Monty's article on <ulink
3191 url="http://www.linuxprogramming.com">LinuxProgramming</ulink>. The
3192 author argues that Monty calls simply for the application of
3193 old (proprietary software) project management techniques in
3194 free software projects instead of working to come up with
3195 something new. I found his article to be extremely well thought
3196 out and I think it's an essential read for any free software
3206 <surname>Martins</surname>
3207 <firstname>Lalo</firstname>
3210 <title><ulink url="http://www.advogato.org/article/128.html">Ask
3211 the Advogatos: why do Free Software projects
3212 fail?</ulink></title>
3215 <publishername><ulink url="http://www.advogato.org">Advogato</ulink></publishername>
3217 <pubdate>July 20, 2000</pubdate>
3221 While the article is little more than a question, reading the
3222 answers to this question offered by Advogato's readers can
3223 help. In a lot of ways, this HOWTO acts as my answer to the
3224 questions posed in this article but there are others, many of
3225 which might take issue with whats is in this HOWTO. It's worth
3235 <surname>Burley</surname>
3236 <firstname>David</firstname>
3240 url="http://www.advogato.org/article/107.html">In-Roads to Free
3241 Software Development</ulink></title>
3244 <publishername><ulink url="http://www.advogato.org">Advogato</ulink></publishername>
3246 <pubdate>June 14, 2000</pubdate>
3250 This document was written as a response to <ulink
3251 url="http://www.advogato.org/article/72.html">another Advogato
3252 article</ulink>. Although not about running a project, this
3253 describes some of the ways that you can get started with free
3254 software development without starting a project. I think this
3255 is an important article. If you are interested in becoming
3256 involved with free software, this article showcases some of the
3257 ways that you can do this without actually starting a project
3258 (something that I hope this HOWTO has demonstrated is not to be
3268 <surname>Moorman</surname>
3269 <firstname>Jacob</firstname>
3272 <title><ulink url="http://www.advogato.org/article/72.html">Importance of
3273 Non-Developer Supporters in Free Software</ulink><title></title>
3276 <publishername><ulink url="http://www.advogato.org">Advogato</ulink></publishername>
3278 <pubdate>April 16, 2000</pubdate>
3282 Moorman's is a short article but it brings up some good
3283 points. The comment reminding developers to thank their testers
3284 and end-users is invaluable and oft-forgotten.
3293 <surname>Orchard</surname>
3294 <firstname>Leslie</firstname>
3297 <title><ulink url="http://www.advogato.org/article/67.html">On
3298 Naming an Open Source Project</ulink></title>
3301 <publishername><ulink url="http://www.advogato.org">Advogato</ulink></publishername>
3303 <pubdate>April 12, 2000</pubdate>
3307 I didn't even have a section on project naming in this HOWTO
3308 (See <xref linkend="naming">) until Leslie Orchard's article
3309 reminded me of it. Thanks to Leslie for writing this article!
3318 <surname>Allen</surname>
3319 <firstname>David</firstname>
3322 <title><ulink url="http://www.advogato.org/article/40.html">Version Numbering Madness</ulink></title>
3325 <publishername><ulink url="http://www.advogato.org">Advogato</ulink></publishername>
3327 <pubdate>February 28, 2000</pubdate>
3331 In this article, David Allen challenges the whole
3332 <quote>Major.Minor.Patch</quote> version numbering scheme. Its
3333 good to read this as you read <xref
3334 linkend="chooseversioning">. I liked the article and it
3335 describes some of the projects that I bring up in my discussion
3336 of version numbering.
3346 The GNU Free Documentation License 1.1 in DocBook
3347 Markup by Eric Baudais <baudais@okstate.edu>
3348 Maintained by the GNOME Documentation Project
3349 http://developer.gnome.org/projects/gdp
3351 Last Modified: Nov 16, 2000
3357 Version 1.1, March 2000
3360 <year>2000</year><holder>Free Software Foundation, Inc.</holder>
3362 <legalnotice id="fdl-legalnotice">
3364 <address>Free Software Foundation, Inc. <street>59 Temple Place,
3365 Suite 330</street>, <city>Boston</city>, <state>MA</state>
3366 <postcode>02111-1307</postcode> <country>USA</country></address>
3367 Everyone is permitted to copy and distribute verbatim copies of this
3368 license document, but changing it is not allowed.
3372 <title>GNU Free Documentation License</title>
3374 <simplesect id="fdl-preamble">
3375 <title>0. PREAMBLE</title>
3377 The purpose of this License is to make a manual, textbook, or
3378 other written document <quote>free</quote> in the sense of
3379 freedom: to assure everyone the effective freedom to copy and
3380 redistribute it, with or without modifying it, either
3381 commercially or non-commercially. Secondarily, this License
3382 preserves for the author and publisher a way to get credit for
3383 their work, while not being considered responsible for
3384 modifications made by others.
3388 This License is a kind of <quote>copyleft</quote>, which means
3389 that derivative works of the document must themselves be free in
3390 the same sense. It complements the GNU General Public License,
3391 which is a copyleft license designed for free software.
3395 We have designed this License in order to use it for manuals for
3396 free software, because free software needs free documentation: a
3397 free program should come with manuals providing the same
3398 freedoms that the software does. But this License is not limited
3399 to software manuals; it can be used for any textual work,
3400 regardless of subject matter or whether it is published as a
3401 printed book. We recommend this License principally for works
3402 whose purpose is instruction or reference.
3405 <simplesect id="fdl-simplesect1">
3406 <title>1. APPLICABILITY AND DEFINITIONS</title>
3407 <para id="fdl-document">
3408 This License applies to any manual or other work that contains a
3409 notice placed by the copyright holder saying it can be
3410 distributed under the terms of this License. The
3411 <quote>Document</quote>, below, refers to any such manual or
3412 work. Any member of the public is a licensee, and is addressed
3413 as <quote>you</quote>.
3416 <para id="fdl-modified">
3417 A <quote>Modified Version</quote> of the Document means any work
3418 containing the Document or a portion of it, either copied
3419 verbatim, or with modifications and/or translated into another
3423 <para id="fdl-secondary">
3424 A <quote>Secondary Section</quote> is a named appendix or a
3425 front-matter section of the <link
3426 linkend="fdl-document">Document</link> that deals exclusively
3427 with the relationship of the publishers or authors of the
3428 Document to the Document's overall subject (or to related
3429 matters) and contains nothing that could fall directly within
3430 that overall subject. (For example, if the Document is in part a
3431 textbook of mathematics, a Secondary Section may not explain any
3432 mathematics.) The relationship could be a matter of historical
3433 connection with the subject or with related matters, or of
3434 legal, commercial, philosophical, ethical or political position
3438 <para id="fdl-invariant">
3439 The <quote>Invariant Sections</quote> are certain <link
3440 linkend="fdl-secondary"> Secondary Sections</link> whose titles
3441 are designated, as being those of Invariant Sections, in the
3442 notice that says that the <link
3443 linkend="fdl-document">Document</link> is released under this
3447 <para id="fdl-cover-texts">
3448 The <quote>Cover Texts</quote> are certain short passages of
3449 text that are listed, as Front-Cover Texts or Back-Cover Texts,
3450 in the notice that says that the <link
3451 linkend="fdl-document">Document</link> is released under this
3455 <para id="fdl-transparent">
3456 A <quote>Transparent</quote> copy of the <link
3457 linkend="fdl-document"> Document</link> means a machine-readable
3458 copy, represented in a format whose specification is available
3459 to the general public, whose contents can be viewed and edited
3460 directly and straightforwardly with generic text editors or (for
3461 images composed of pixels) generic paint programs or (for
3462 drawings) some widely available drawing editor, and that is
3463 suitable for input to text formatters or for automatic
3464 translation to a variety of formats suitable for input to text
3465 formatters. A copy made in an otherwise Transparent file format
3466 whose markup has been designed to thwart or discourage
3467 subsequent modification by readers is not Transparent. A copy
3468 that is not <quote>Transparent</quote> is called
3469 <quote>Opaque</quote>.
3473 Examples of suitable formats for Transparent copies include
3474 plain ASCII without markup, Texinfo input format, LaTeX input
3475 format, SGML or XML using a publicly available DTD, and
3476 standard-conforming simple HTML designed for human
3477 modification. Opaque formats include PostScript, PDF,
3478 proprietary formats that can be read and edited only by
3479 proprietary word processors, SGML or XML for which the DTD
3480 and/or processing tools are not generally available, and the
3481 machine-generated HTML produced by some word processors for
3482 output purposes only.
3485 <para id="fdl-title-page">
3486 The <quote>Title Page</quote> means, for a printed book, the
3487 title page itself, plus such following pages as are needed to
3488 hold, legibly, the material this License requires to appear in
3489 the title page. For works in formats which do not have any title
3490 page as such, <quote>Title Page</quote> means the text near the
3491 most prominent appearance of the work's title, preceding the
3492 beginning of the body of the text.
3496 <simplesect id="fdl-section2">
3497 <title>2. VERBATIM COPYING</title>
3499 You may copy and distribute the <link
3500 linkend="fdl-document">Document</link> in any medium, either
3501 commercially or non-commercially, provided that this License, the
3502 copyright notices, and the license notice saying this License
3503 applies to the Document are reproduced in all copies, and that
3504 you add no other conditions whatsoever to those of this
3505 License. You may not use technical measures to obstruct or
3506 control the reading or further copying of the copies you make or
3507 distribute. However, you may accept compensation in exchange for
3508 copies. If you distribute a large enough number of copies you
3509 must also follow the conditions in <link
3510 linkend="fdl-section3">section 3</link>.
3514 You may also lend copies, under the same conditions stated
3515 above, and you may publicly display copies.
3519 <simplesect id="fdl-section3">
3520 <title>3. COPYING IN QUANTITY</title>
3522 If you publish printed copies of the <link
3523 linkend="fdl-document">Document</link> numbering more than 100,
3524 and the Document's license notice requires <link
3525 linkend="fdl-cover-texts">Cover Texts</link>, you must enclose
3526 the copies in covers that carry, clearly and legibly, all these
3527 Cover Texts: Front-Cover Texts on the front cover, and
3528 Back-Cover Texts on the back cover. Both covers must also
3529 clearly and legibly identify you as the publisher of these
3530 copies. The front cover must present the full title with all
3531 words of the title equally prominent and visible. You may add
3532 other material on the covers in addition. Copying with changes
3533 limited to the covers, as long as they preserve the title of the
3534 <link linkend="fdl-document">Document</link> and satisfy these
3535 conditions, can be treated as verbatim copying in other
3540 If the required texts for either cover are too voluminous to fit
3541 legibly, you should put the first ones listed (as many as fit
3542 reasonably) on the actual cover, and continue the rest onto
3547 If you publish or distribute <link
3548 linkend="fdl-transparent">Opaque</link> copies of the <link
3549 linkend="fdl-document">Document</link> numbering more than 100,
3550 you must either include a machine-readable <link
3551 linkend="fdl-transparent">Transparent</link> copy along with
3552 each Opaque copy, or state in or with each Opaque copy a
3553 publicly-accessible computer-network location containing a
3554 complete Transparent copy of the Document, free of added
3555 material, which the general network-using public has access to
3556 download anonymously at no charge using public-standard network
3557 protocols. If you use the latter option, you must take
3558 reasonably prudent steps, when you begin distribution of Opaque
3559 copies in quantity, to ensure that this Transparent copy will
3560 remain thus accessible at the stated location until at least one
3561 year after the last time you distribute an Opaque copy (directly
3562 or through your agents or retailers) of that edition to the
3567 It is requested, but not required, that you contact the authors
3568 of the <link linkend="fdl-document">Document</link> well before
3569 redistributing any large number of copies, to give them a chance
3570 to provide you with an updated version of the Document.
3574 <simplesect id="fdl-section4">
3575 <title>4. MODIFICATIONS</title>
3577 You may copy and distribute a <link
3578 linkend="fdl-modified">Modified Version</link> of the <link
3579 linkend="fdl-document">Document</link> under the conditions of
3580 sections <link linkend="fdl-section2">2</link> and <link
3581 linkend="fdl-section3">3</link> above, provided that you release
3582 the Modified Version under precisely this License, with the
3583 Modified Version filling the role of the Document, thus
3584 licensing distribution and modification of the Modified Version
3585 to whoever possesses a copy of it. In addition, you must do
3586 these things in the Modified Version:
3589 <itemizedlist mark="opencircle">
3594 Use in the <link linkend="fdl-title-page">Title
3595 Page</link> (and on the covers, if any) a title distinct
3596 from that of the <link
3597 linkend="fdl-document">Document</link>, and from those of
3598 previous versions (which should, if there were any, be
3599 listed in the History section of the Document). You may
3600 use the same title as a previous version if the original
3601 publisher of that version gives permission.
3610 List on the <link linkend="fdl-title-page">Title
3611 Page</link>, as authors, one or more persons or entities
3612 responsible for authorship of the modifications in the
3613 <link linkend="fdl-modified">Modified Version</link>,
3614 together with at least five of the principal authors of
3615 the <link linkend="fdl-document">Document</link> (all of
3616 its principal authors, if it has less than five).
3625 State on the <link linkend="fdl-title-page">Title
3626 Page</link> the name of the publisher of the <link
3627 linkend="fdl-modified">Modified Version</link>, as the
3637 Preserve all the copyright notices of the <link
3638 linkend="fdl-document">Document</link>.
3647 Add an appropriate copyright notice for your modifications
3648 adjacent to the other copyright notices.
3657 Include, immediately after the copyright notices, a
3658 license notice giving the public permission to use the
3659 <link linkend="fdl-modified">Modified Version</link> under
3660 the terms of this License, in the form shown in the
3670 Preserve in that license notice the full lists of <link
3671 linkend="fdl-invariant"> Invariant Sections</link> and
3672 required <link linkend="fdl-cover-texts">Cover
3673 Texts</link> given in the <link
3674 linkend="fdl-document">Document's</link> license notice.
3683 Include an unaltered copy of this License.
3692 Preserve the section entitled <quote>History</quote>, and
3693 its title, and add to it an item stating at least the
3694 title, year, new authors, and publisher of the <link
3695 linkend="fdl-modified">Modified Version </link>as given on
3696 the <link linkend="fdl-title-page">Title Page</link>. If
3697 there is no section entitled <quote>History</quote> in the
3698 <link linkend="fdl-document">Document</link>, create one
3699 stating the title, year, authors, and publisher of the
3700 Document as given on its Title Page, then add an item
3701 describing the Modified Version as stated in the previous
3711 Preserve the network location, if any, given in the <link
3712 linkend="fdl-document">Document</link> for public access
3713 to a <link linkend="fdl-transparent">Transparent</link>
3714 copy of the Document, and likewise the network locations
3715 given in the Document for previous versions it was based
3716 on. These may be placed in the <quote>History</quote>
3717 section. You may omit a network location for a work that
3718 was published at least four years before the Document
3719 itself, or if the original publisher of the version it
3720 refers to gives permission.
3729 In any section entitled <quote>Acknowledgements</quote> or
3730 <quote>Dedications</quote>, preserve the section's title,
3731 and preserve in the section all the substance and tone of
3732 each of the contributor acknowledgements and/or
3733 dedications given therein.
3742 Preserve all the <link linkend="fdl-invariant">Invariant
3743 Sections</link> of the <link
3744 linkend="fdl-document">Document</link>, unaltered in their
3745 text and in their titles. Section numbers or the
3746 equivalent are not considered part of the section titles.
3755 Delete any section entitled
3756 <quote>Endorsements</quote>. Such a section may not be
3757 included in the <link linkend="fdl-modified">Modified
3767 Do not retitle any existing section as
3768 <quote>Endorsements</quote> or to conflict in title with
3769 any <link linkend="fdl-invariant">Invariant
3777 If the <link linkend="fdl-modified">Modified Version</link>
3778 includes new front-matter sections or appendices that qualify as
3779 <link linkend="fdl-secondary">Secondary Sections</link> and
3780 contain no material copied from the Document, you may at your
3781 option designate some or all of these sections as invariant. To
3782 do this, add their titles to the list of <link
3783 linkend="fdl-invariant">Invariant Sections</link> in the
3784 Modified Version's license notice. These titles must be
3785 distinct from any other section titles.
3789 You may add a section entitled <quote>Endorsements</quote>,
3790 provided it contains nothing but endorsements of your <link
3791 linkend="fdl-modified">Modified Version</link> by various
3792 parties--for example, statements of peer review or that the text
3793 has been approved by an organization as the authoritative
3794 definition of a standard.
3798 You may add a passage of up to five words as a <link
3799 linkend="fdl-cover-texts">Front-Cover Text</link>, and a passage
3800 of up to 25 words as a <link
3801 linkend="fdl-cover-texts">Back-Cover Text</link>, to the end of
3802 the list of <link linkend="fdl-cover-texts">Cover Texts</link>
3803 in the <link linkend="fdl-modified">Modified Version</link>.
3804 Only one passage of Front-Cover Text and one of Back-Cover Text
3805 may be added by (or through arrangements made by) any one
3806 entity. If the <link linkend="fdl-document">Document</link>
3807 already includes a cover text for the same cover, previously
3808 added by you or by arrangement made by the same entity you are
3809 acting on behalf of, you may not add another; but you may
3810 replace the old one, on explicit permission from the previous
3811 publisher that added the old one.
3815 The author(s) and publisher(s) of the <link
3816 linkend="fdl-document">Document</link> do not by this License
3817 give permission to use their names for publicity for or to
3818 assert or imply endorsement of any <link
3819 linkend="fdl-modified">Modified Version </link>.
3823 <simplesect id="fdl-section5">
3824 <title>5. COMBINING DOCUMENTS</title>
3826 You may combine the <link linkend="fdl-document">Document</link>
3827 with other documents released under this License, under the
3828 terms defined in <link linkend="fdl-section4">section 4</link>
3829 above for modified versions, provided that you include in the
3830 combination all of the <link linkend="fdl-invariant">Invariant
3831 Sections</link> of all of the original documents, unmodified,
3832 and list them all as Invariant Sections of your combined work in
3837 The combined work need only contain one copy of this License,
3838 and multiple identical <link linkend="fdl-invariant">Invariant
3839 Sections</link> may be replaced with a single copy. If there are
3840 multiple Invariant Sections with the same name but different
3841 contents, make the title of each such section unique by adding
3842 at the end of it, in parentheses, the name of the original
3843 author or publisher of that section if known, or else a unique
3844 number. Make the same adjustment to the section titles in the
3845 list of Invariant Sections in the license notice of the combined
3850 In the combination, you must combine any sections entitled
3851 <quote>History</quote> in the various original documents,
3852 forming one section entitled <quote>History</quote>; likewise
3853 combine any sections entitled <quote>Acknowledgements</quote>,
3854 and any sections entitled <quote>Dedications</quote>. You must
3855 delete all sections entitled <quote>Endorsements.</quote>
3859 <simplesect id="fdl-section6">
3860 <title>6. COLLECTIONS OF DOCUMENTS</title>
3862 You may make a collection consisting of the <link
3863 linkend="fdl-document">Document</link> and other documents
3864 released under this License, and replace the individual copies
3865 of this License in the various documents with a single copy that
3866 is included in the collection, provided that you follow the
3867 rules of this License for verbatim copying of each of the
3868 documents in all other respects.
3872 You may extract a single document from such a collection, and
3873 dispbibute it individually under this License, provided you
3874 insert a copy of this License into the extracted document, and
3875 follow this License in all other respects regarding verbatim
3876 copying of that document.
3880 <simplesect id="fdl-section7">
3881 <title>7. AGGREGATION WITH INDEPENDENT WORKS</title>
3883 A compilation of the <link
3884 linkend="fdl-document">Document</link> or its derivatives with
3885 other separate and independent documents or works, in or on a
3886 volume of a storage or distribution medium, does not as a whole
3887 count as a <link linkend="fdl-modified">Modified Version</link>
3888 of the Document, provided no compilation copyright is claimed
3889 for the compilation. Such a compilation is called an
3890 <quote>aggregate</quote>, and this License does not apply to the
3891 other self-contained works thus compiled with the Document , on
3892 account of their being thus compiled, if they are not themselves
3893 derivative works of the Document. If the <link
3894 linkend="fdl-cover-texts">Cover Text</link> requirement of <link
3895 linkend="fdl-section3">section 3</link> is applicable to these
3896 copies of the Document, then if the Document is less than one
3897 quarter of the entire aggregate, the Document's Cover Texts may
3898 be placed on covers that surround only the Document within the
3899 aggregate. Otherwise they must appear on covers around the whole
3904 <simplesect id="fdl-section8">
3905 <title>8. TRANSLATION</title>
3907 Translation is considered a kind of modification, so you may
3908 distribute translations of the <link
3909 linkend="fdl-document">Document</link> under the terms of <link
3910 linkend="fdl-section4">section 4</link>. Replacing <link
3911 linkend="fdl-invariant"> Invariant Sections</link> with
3912 translations requires special permission from their copyright
3913 holders, but you may include translations of some or all
3914 Invariant Sections in addition to the original versions of these
3915 Invariant Sections. You may include a translation of this
3916 License provided that you also include the original English
3917 version of this License. In case of a disagreement between the
3918 translation and the original English version of this License,
3919 the original English version will prevail.
3923 <simplesect id="fdl-section9">
3924 <title>9. TERMINATION</title>
3926 You may not copy, modify, sublicense, or distribute the <link
3927 linkend="fdl-document">Document</link> except as expressly
3928 provided for under this License. Any other attempt to copy,
3929 modify, sublicense or distribute the Document is void, and will
3930 automatically terminate your rights under this License. However,
3931 parties who have received copies, or rights, from you under this
3932 License will not have their licenses terminated so long as such
3933 parties remain in full compliance.
3937 <simplesect id="fdl-section10">
3938 <title>10. FUTURE REVISIONS OF THIS LICENSE</title>
3940 The <ulink type="http"
3941 url="http://www.gnu.org/fsf/fsf.html">Free Software
3942 Foundation</ulink> may publish new, revised versions of the GNU
3943 Free Documentation License from time to time. Such new versions
3944 will be similar in spirit to the present version, but may differ
3945 in detail to address new problems or concerns. See <ulink
3947 url="http://www.gnu.org/copyleft">http://www.gnu.org/copyleft/</ulink>.
3951 Each version of the License is given a distinguishing version
3952 number. If the <link linkend="fdl-document">Document</link>
3953 specifies that a particular numbered version of this License
3954 <quote>or any later version</quote> applies to it, you have the
3955 option of following the terms and conditions either of that
3956 specified version or of any later version that has been
3957 published (not as a draft) by the Free Software Foundation. If
3958 the Document does not specify a version number of this License,
3959 you may choose any version ever published (not as a draft) by
3960 the Free Software Foundation.
3967 <!-- Keep this comment at the end of the file
3972 sgml-namecase-general:t
3973 sgml-general-insert-case:lower
3974 sgml-minimize-attributes:nil
3975 sgml-always-quote-attributes:t
3977 sgml-indent-data:nil
3978 sgml-parent-document:nil
3979 sgml-exposed-tags:nil
3980 sgml-local-catalogs:nil
3981 sgml-local-ecat-files:nil