<!DOCTYPE article [
<!ENTITY name "wd-docbook-docbook">
<!ENTITY version "4.5">
<!ENTITY standard "Public Review Draft">
<!ENTITY tracker "http://sourceforge.net/tracker">
<!ENTITY RFE "&tracker;/index.php?func=detail&amp;group_id=21935&amp;atid=384107&amp;">
<!ENTITY root "http://www.oasis-open.org/docbook/">
]>
<article status="&standard;">
<articleinfo>
<releaseinfo role="cvs">
$Id: docbook.xml,v 1.30 2005/07/28 20:32:31 nwalsh Exp $
</releaseinfo>

<productname>&name;</productname>
<productnumber>&version;</productnumber>

<releaseinfo role="product"><ulink url="&name;-&version;.xml">XML</ulink></releaseinfo>
<releaseinfo role="product"><ulink url="&name;-&version;.html">HTML</ulink></releaseinfo>
<releaseinfo role="product"><ulink url="&name;-&version;.pdf">PDF</ulink></releaseinfo>

<releaseinfo role="location">&root;specs</releaseinfo>

<title>The DocBook Document Type</title>

<authorgroup>
<editor>
  <firstname>Norman</firstname><surname>Walsh</surname>
  <affiliation>
    <shortaffil>Sun</shortaffil>
    <orgname>Sun Microsystems, Inc.</orgname>
    <address><email>Norman.Walsh@Sun.COM</email></address>
  </affiliation>
</editor>
</authorgroup>

<pubdate>28 July 2005</pubdate>

<copyright>
<year>2001</year>
<year>2002</year>
<year>2003</year>
<year>2004</year>
<year>2005</year>
<holder>
The Organization for the Advancement of Structured Information
Standards [OASIS]. All Rights Reserved.
</holder></copyright>

<abstract><title>Abstract</title>
<para>DocBook is general purpose <xref linkend="xml-rec"/> and
<xref linkend="iso8879"/> document type
particularly well suited to books and papers about computer hardware
and software (though it is by no means limited to these applications).
</para>
<para>The Version 4.5 release is a maintenance release. It introduces
no backwards-incompatible changes.</para>
</abstract>

<legalnotice role="status"><title>Status</title>
<!--
<para>This &standard; was
<ulink url="http://lists.oasis-open.org/archives/docbook/200501/msg00118.html">approved</ulink>
for publication by the
OASIS DocBook Technical Committee. It represents the
consensus of the committee.
</para>
-->

<para>This &standard; is an editor's draft. It does not necessarily
represent the consensus of the committee.
</para>

<para>Please send comments on this specification to the
<email>docbook@lists.oasis-open.org</email> list. To subscribe, please
use the
<ulink url="http://lists.oasis-open.org/ob/adm.pl">OASIS Subscription
Manager</ulink>.</para>

<para>The errata page for this specification is at
<ulink url="&root;specs/docbook-errata.html"/>.
</para>
</legalnotice>
</articleinfo>

<section id="s.intro">
<title>Introduction</title>

<para>DocBook is general purpose XML and SGML document type
particularly well suited to books and papers about computer hardware
and software (though it is by no means limited to these applications).
</para>

<para>The <ulink url="mailto:docbook-tc@oasis-open.org">DocBook
Technical Committee</ulink> maintains the DocBook schema. DocBook is
officially available as a Document Type Definition (DTD) for
both
<ulink url="http://xml.coverpages.org/xmlIntro.html">XML</ulink> and
<ulink url="http://xml.coverpages.org/general.html#overview">SGML</ulink>.
It is unofficially available in other forms as well.</para>

<para>The Version 4.5 release is a maintainance release. It introduces
no backwards-incompatible changes. All valid DocBook 4.4 documents are
also valid DocBook 4.5 documents.</para>

<para>The Committee decided to produce a DocBook V4.5, incorporating
a few recent backwards-compatible changes, in order to publish DocBook
as a Committee Draft and eventually as an OASIS Standard through
<ulink url="http://www.oasis-open.org/committees/process_2005.03.23.php">the
new process</ulink>.</para>

<para>The DocBook Technical Committee welcomes bug reports and
requests for enhancement (RFEs) from the user community. The current list
of outstanding requests is available through the
<ulink url="http://sourceforge.net/">SourceForge</ulink>
<ulink url="&tracker;/?atid=384107&amp;group_id=21935&amp;func=browse">tracker</ulink>
interface. This is also the preferred mechanism for submitting new requests.
Old RFEs, from a previous legacy tracking system, are
<ulink url="http://www.oasis-open.org/docbook/old-rfes.html">archived</ulink>
for reference.</para>

</section>

<section id="s.terminology"><title>Terminology</title>

<para>The key words <glossterm>must</glossterm>, <glossterm>must
not</glossterm>, <glossterm>required</glossterm>,
<glossterm>shall</glossterm>, <glossterm>shall not</glossterm>,
<glossterm>should</glossterm>, <glossterm>should not</glossterm>,
<glossterm>recommended</glossterm>, <glossterm>may</glossterm>, and
<glossterm>optional</glossterm> in this &standard; are to be
interpreted as described in <xref linkend="rfc2119"/>. Note that for
reasons of style, these words are not capitalized in this
document.</para>

</section>

<section id="docbook">
<title>The DocBook Document Type V4.5</title>

<para>The DocBook document type is distributed for
<ulink url="&root;xml/">XML</ulink> and
<ulink url="&root;sgml/">SGML</ulink>
from the
<ulink url="http://www.oasis-open.org/docbook/">DocBook site</ulink> at
<ulink url="http://www.oasis-open.org/">OASIS</ulink>.
It is also available in <ulink url="&root;rng/">RELAX NG</ulink> and
<ulink url="&root;xsd/">W3C XML Schema</ulink> formats.
The DocBook site is mirrored on
<ulink url="http://docbook.org/"/>.
</para>

<section id="s.pr">
<title>Changes in the Public Review Draft of DocBook V4.5</title>

<para>There are no technical changes in this release.
</para>
</section>

<section id="s.cr1">
<title>Changes in DocBook V4.5CR1</title>

<para>There are no backwards-incompatible changes in this release.
</para>

<para>Each of the changes made between DocBook V4.5b1 and DocBook V4.5CR1
is summarized here. For complete details, consult the individual RFEs and
the <ulink url="&root;minutes">meeting minutes</ulink>.</para>

<para>There are no technical changes in DocBook V4.5CR1.</para>
</section>

<section id="s.b1">
<title>Changes in DocBook V4.5b1</title>

<para>There are no backwards-incompatible changes in this release.
</para>

<para>Each of the changes made between DocBook V4.4 and DocBook V4.5b1
is summarized here. For complete details, consult the individual RFEs and
the <ulink url="&root;minutes">meeting minutes</ulink>.</para>

<section id="sb1.bugs">
<title>Bug Fixes</title>

<itemizedlist spacing="compact">
<listitem><para>None.</para>
</listitem>
</itemizedlist>
</section>

<section id="sb1.enhancements">
<title>Enhancements</title>

<itemizedlist spacing="compact">

<listitem id="rfe.1055480">
<para><ulink url="&RFE;aid=1055480">RFE 1055480</ulink>:
Allow <sgmltag>revnumber</sgmltag> to be optional in
<sgmltag>revision</sgmltag> per the
<ulink url="http://docbook.org/minutes/2004-11-22.txt">November, 2004</ulink> 
meeting.</para>
</listitem>

<listitem id="rfe.1070458">
<para><ulink url="&RFE;aid=1070458">RFE 1070458</ulink>:
Allow <sgmltag>colophon</sgmltag> in <sgmltag>article</sgmltag> per the
<ulink url="http://docbook.org/minutes/2004-11-22.txt">November, 2004</ulink> 
meeting.</para>
</listitem>

<listitem id="rfe.1070770">
<para><ulink url="&RFE;aid=1070770">RFE 1070770</ulink>:
Allow <sgmltag>procedure</sgmltag> in <sgmltag>example</sgmltag> per the
<ulink url="http://docbook.org/minutes/2004-11-22.txt">November, 2004</ulink> 
meeting.</para>
</listitem>

<listitem id="rfe.1071686">
<para><ulink url="&RFE;aid=1071686">RFE 1071686</ulink>:
Add <sgmltag class="attvalue">isrn</sgmltag> as a value of
<sgmltag class="attribute">class</sgmltag> attribute on
<sgmltag>biblioid</sgmltag>,
<sgmltag>citebiblioid</sgmltag>,
<sgmltag>bibliosource</sgmltag>, and
<sgmltag>bibliorelation</sgmltag> per the
<ulink url="http://docbook.org/minutes/2004-12-15.txt">December, 2004</ulink> 
meeting.</para>
</listitem>

<listitem><para>Added <sgmltag>mathphrase</sgmltag>
per the
<ulink url="http://docbook.org/minutes/2005-02-16.txt">February, 2005</ulink> 
meeting.
</para></listitem>

<listitem><para>Added <sgmltag>termdef</sgmltag>
per the
<ulink url="http://docbook.org/minutes/2005-03-16.txt">March, 2005</ulink> 
meeting.
</para></listitem>

<listitem><para>Allow common attributes on HTML table elements
(<sgmltag>tr</sgmltag>, <sgmltag>td</sgmltag>, etc.)
per the
<ulink url="http://docbook.org/minutes/2005-04-20.txt">April, 2005</ulink> 
meeting.
</para></listitem>
</itemizedlist>
</section>
</section>
</section>

<section><title>Release Notes</title>

<para>XML validation technologies have evolved rapidly in the last few
years. The Technical Committee is exploring the possibility of using
RELAX NG as the principal validation technology for DocBook V5.0. The
move to RELAX NG will also cause some one time backward-incompatible
changes which are not listed in this specifcation.</para>

</section>

<appendix id="a.mimetype">
<title>The DocBook Media Type</title>

<para>This appendix registers a new MIME media type,
<quote><code>application/docbook+xml</code></quote>.</para>

<section id="media-type-registration">
<title>Registration of MIME media type application/docbook+xml</title>

<variablelist>
<varlistentry>
<term>MIME media type name:</term>
<listitem>
<para><code>application</code>
</para>
</listitem>
</varlistentry>

<varlistentry>
<term>MIME subtype name:</term>
<listitem>
<para><code>docbook+xml</code>
</para>
</listitem>
</varlistentry>

<varlistentry>
<term>Required parameters:</term>
<listitem>
<para>None.
</para>
</listitem>
</varlistentry>

<varlistentry>
<term>Optional parameters:</term>
<listitem>
  <variablelist>
  <varlistentry>
  <term><code>charset</code></term>
  <listitem>

  <para>This parameter has identical semantics to the <code>charset</code>
parameter of the <code>application/xml</code> media type as
specified in <xref linkend="rfc3023"/> or its successors.
</para>
  </listitem>
  </varlistentry>
  </variablelist>
</listitem>
</varlistentry>

<varlistentry>
<term>Encoding considerations:</term>
<listitem>
<para>By virtue of DocBook XML content being XML, it has the same
considerations when sent as <quote><code>application/docbook+xml</code></quote>
as does XML. See <xref linkend="rfc3023"/>, Section 3.2.
</para>
</listitem>
</varlistentry>

<varlistentry>
<term>Security considerations:</term>
<listitem>
<para>Several DocBook elements may refer to arbitrary URIs.
In this case, the security issues of RFC 2396, section 7,
should be considered.</para>
</listitem>
</varlistentry>

<varlistentry>
<term>Interoperability considerations:</term>
<listitem>
<para>None.</para>
</listitem>
</varlistentry>

<varlistentry>
<term>Published specification:</term>
<listitem>
<para>This media type registration is for DocBook documents as described by
<xref linkend="bib.docbooktdg"/>.</para>
</listitem>
</varlistentry>

<varlistentry>
<term>Applications which use this media type:</term>
<listitem>
<para>There is no experimental, vendor specific, or personal tree
predecessor to <quote><code>application/docbook+xml</code></quote>,
reflecting the fact that no applications currently recognize it. This
new type is being registered in order to allow for the
deployment of DocBook on the World Wide Web, as a first class XML
application.
</para>
</listitem>
</varlistentry>

<varlistentry>
<term>Additional information:</term>
<listitem>
  <variablelist>
  <varlistentry>
  <term>Magic number(s):</term>

  <listitem>
  <para>There is no single initial octet sequence that is always present in
DocBook documents.
  </para>
  </listitem>
  </varlistentry>

  <varlistentry>
  <term>File extension(s):</term>
  <listitem>
  <para>DocBook documents are most often identified with the extension
<quote><filename class="extension">.xml</filename></quote>.
  </para>
  </listitem>
  </varlistentry>

  <varlistentry>
  <term>Macintosh File Type Code(s):</term>
  <listitem>
  <para>TEXT</para>
  </listitem>
  </varlistentry>
  </variablelist>
</listitem>
</varlistentry>

<varlistentry>
<term>Person &amp; email address to contact for further information:</term>
<listitem>
<para>Norman Walsh, <email>ndw@nwalsh.com</email>.</para>
</listitem>
</varlistentry>

<varlistentry>
<term>Intended usage:</term>
<listitem>
<para>COMMON</para>
</listitem>
</varlistentry>

<varlistentry>
<term>Author/Change controller:</term>
<listitem>
<para>The DocBook specification is a work product of the DocBook
Technical Committee at OASIS.</para>
</listitem>
</varlistentry>
</variablelist>
</section>

<section id="fragid">
<title>Fragment Identifiers</title>

<para>For documents labeled as
<quote><code>application/docbook+xml</code></quote>,
the fragment
identifier notation is exactly that for
<quote><code>application/xml</code></quote>,
as specified in <xref linkend="rfc3023"/> or its successors.</para>
</section>
</appendix>

<appendix id="a.committee" role="non-normative">
<title>OASIS DocBook Technical Committee</title>

<para>The following individuals were members of the committee during
the formulation of this &standard;:</para>

<itemizedlist spacing="compact">
<listitem><para>Adam Di Carlo</para></listitem>
<listitem><para>Steve Cogorno</para></listitem>
<listitem><para>Gary Cornelius</para></listitem>
<listitem><para>Dick Hamilton</para></listitem>
<listitem><para>Nancy Harrison</para></listitem>
<listitem><para>Scott Hudson</para></listitem>
<listitem><para>Paul Grosso</para></listitem>
<listitem><para>Mark Johnson</para></listitem>
<listitem><para>Jirka Kosek</para></listitem>
<listitem><para>Larry Rowland</para></listitem>
<listitem><para>Michael Smith</para></listitem>
<listitem><para>Robert Stayton, Secretary</para></listitem>
<listitem><para>Norman Walsh, Chair, Editor</para></listitem>
</itemizedlist>
</appendix>

<appendix id="a.notices">
<title>Notices</title>

<para>Copyright &#169; The Organization for the Advancement of
Structured Information Standards [OASIS]
2001, 2002, 2003, 2004, 2005.
All Rights Reserved.</para>

<para>OASIS takes no position regarding the validity
or scope of any intellectual property or other rights
that might be claimed to pertain to the implementation
or use of the technology described in this document
or the extent to which any license under such rights
might or might not be available; neither does it represent
that it has made any effort to identify any such rights.
Information on OASIS's procedures with respect to rights
in OASIS specifications can be found at the OASIS website.
Copies of claims of rights made available for publication
and any assurances of licenses to be made available,
or the result of an attempt made to obtain a general
license or permission for the use of such proprietary
rights by implementors or users of this specification,
can be obtained from the OASIS Executive Director.</para>

<para>OASIS invites any interested party to bring to
its attention any copyrights, patents or patent applications,
or other proprietary rights which may cover technology
that may be required to implement this specification.
Please address the information to the OASIS Executive
Director.</para>

<para>This document and translations of it may be copied
and furnished to others, and derivative works that comment
on or otherwise explain it or assist in its implementation
may be prepared, copied, published and distributed,
in whole or in part, without restriction of any kind,
provided that the above copyright notice and this paragraph
are included on all such copies and derivative works.
However, this document itself may not be modified in
any way, such as by removing the copyright notice or
references to OASIS, except as needed for the purpose
of developing OASIS specifications, in which case the
procedures for copyrights defined in the OASIS Intellectual
Property Rights document must be followed, or as required
to translate it into languages other than English.</para>

<para>The limited permissions granted above are perpetual
and will not be revoked by OASIS or its successors or
assigns.</para>

<para>This document and the information contained herein
is provided on an <quote>AS IS</quote> basis and OASIS DISCLAIMS
ALL WARRANTIES, EXPRESS OR IMPLIED, INCLUDING BUT NOT
LIMITED TO ANY WARRANTY THAT THE USE OF THE INFORMATION
HEREIN WILL NOT INFRINGE ANY RIGHTS OR ANY IMPLIED WARRANTIES
OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE.</para>

<para>OASIS has been notified of intellectual property
rights claimed in regard to some or all of the contents
of this specification. For more information consult
the online list of claimed rights.</para>

</appendix>

<appendix id="a.ipr">
<title>Intellectual Property Rights</title>

<para>For information on whether any patents have been disclosed that may be
essential to implementing this specification, and any offers of patent
licensing terms, please refer to the Intellectual Property Rights section
of the DocBook web page
(<ulink url="http://www.oasis-open.org/committees/docbook/"/>)
</para>

</appendix>

<appendix id="a.revhistory">
<title>Revision History</title>

<para>
<revhistory>
<revision role="&root;specs/pr-docbook-docbook-4.5.html">
  <revnumber>Public Review Draft</revnumber>
  <date>28 July 2005</date>
</revision>
<revision role="&root;specs/wd-docbook-docbook-4.5CR1.html">
  <revnumber>Working Draft CR1</revnumber>
  <date>29 June 2005</date>
</revision>
<revision role="&root;specs/wd-docbook-docbook-4.5b1.html">
  <revnumber>Working Draft b1</revnumber>
  <date>05 May 2005</date>
</revision>
</revhistory>
</para>

</appendix>

<bibliography id="references"><title>References</title>

<bibliodiv><title>Normative</title>

<bibliomixed id="iso8879"/>
<bibliomixed id="xml-rec"/>
<bibliomixed id="rfc2119"/>
<bibliomixed id="rfc3023"/>
<bibliomixed id="bib.docbooktdg"/>

</bibliodiv>

</bibliography>

</article>
