Topic domains

A DITA domain defines a set of elements associated with a particular subject area or authoring requirement regardless of topic type.

The elements in a domain are defined in a domain module which can be integrated with a topic type to make the domain elements available within the topic type structure. Currently the following domains are provided:

Table 1. DITA topic domains
Domain	Description	Short name	Module name
Typographic	For highlighting when the appropriate semantic element doesn't exist yet	hi-d	highlightDomain.mod (DTD) highlightDomain.xsd (Schema)
Programming	For describing programming and programming languages	pr-d	programmingDomain.mod (DTD) programmingDomain.xsd (Schema)
Software	For describing software	sw-d	softwareDomain.mod (DTD) softwareDomain.xsd (Schema)
User interfaces	For describing user interfaces	ui-d	uiDomain.mod (DTD) uiDomain.xsd (Schema)
Utilities	For providing imagemaps and other useful structures	ut-d	utilitiesDomain.mod (DTD) utilitiesDomain.xsd (Schema)
Indexing	For extended indexing functions such as see and see-also	indexing-d	indexingDomain.mod (DTD) indexingDomain.xsd (Schema)

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