topic

The <topic> element is the top-level DITA element for a single-subject topic or article. Other top-level DITA elements that are more content-specific are <concept>, <task>, <reference>, and <glossary>.

To support applications that are namespace-aware, DITA DTDs and Schemas provide the following fixed namespaced declarations for topic, and for topic-level elements derived from topic:

ditaarch:DITAArchVersion="1.0" 
xmlns:ditaarch="http://dita.oasis-open.org/architecture/2005/"

In DTDs, the "ditaarch" prefix is parameterized to enable future specialization.

Example

<topic id="topic">
 <title>Some little topic</title>
 <body>
  <p>Here's a <b><i>cute</i></b>,
  <b>little</b> topic.</p>
  <ul>
   <li>Some item</li>
   <li>Another item</li>
  </ul>
 </body>
</topic>

Contains

Doctype	Content model
ditabase	( ( title) then ( titlealts) (optional) then ( shortdesc or abstract) (optional) then ( prolog) (optional) then ( body) (optional) then ( related-links) (optional) then ( topic or concept or task or reference or glossentry) (any number) )
topic	( ( title) then ( titlealts) (optional) then ( shortdesc or abstract) (optional) then ( prolog) (optional) then ( body) (optional) then ( related-links) (optional) then ( topic) (any number) )
task	( ( title) then ( titlealts) (optional) then ( shortdesc or abstract) (optional) then ( prolog) (optional) then ( body) (optional) then ( related-links) (optional) then ( topic) (any number) )
reference	( ( title) then ( titlealts) (optional) then ( shortdesc or abstract) (optional) then ( prolog) (optional) then ( body) (optional) then ( related-links) (optional) then ( topic) (any number) )
concept	( ( title) then ( titlealts) (optional) then ( shortdesc or abstract) (optional) then ( prolog) (optional) then ( body) (optional) then ( related-links) (optional) then ( topic) (any number) )
glossary	( ( title) then ( titlealts) (optional) then ( shortdesc or abstract) (optional) then ( prolog) (optional) then ( body) (optional) then ( related-links) (optional) then ( topic) (any number) )

Contained by

Doctype	Parents
ditabase	dita, topic, concept, task, reference
topic	topic
task	topic
concept	topic
reference	topic
glossary	topic, concept

Inheritance:

- topic/topic

Attributes

Name	Description	Data Type	Default Value	Required?
id	This ID enables topics to be referenced uniquely by topicrefs in DITA maps.	ID		Yes
conref	This attribute is used to reference an ID on a topic that can be reused. See The conref attribute for examples and details about the syntax.	CDATA	#IMPLIED	No
xmlns:ditaarch	Declares the default DITA namespace.	CDATA	#FIXED http://dita.oasis-open.org/architecture/2005/
DITAArchVersion	Designates the version of the architecture that is in use.	CDATA	"1.1" (version dependent; will increase)	No
domains	Indicates the specialized domains that are included in the DTD or Schema.	CDATA	(topic ui-d) (topic hi-d) (topic pr-d) (topic sw-d) (topic ut-d) (topic indexing-d)	No
%select-atts; (props, base, platform, product, audience, otherprops, importance, rev, status)	A set of related attributes, described at %select-atts;	parameter entity	PE not applicable	Not applicable
%localization-atts; (translate, xml:lang, dir)	A set of related attributes, described at %localization-atts;.	parameter entity	PE not applicable	Not applicable
%global-atts; (xtrf, xtrc)	A set of related attributes, described at %global-atts;	parameter entity	PE not applicable	Not applicable
class, outputclass	Common attributes described in Other common DITA attributes.