The <no-topic-nesting> element is a placeholder in the DITA architecture. It is not actually used by the default DITA document types; it is for use only when creating a validly customized document type where the information designer wants to eliminate the ability to nest topics. Not intended for use by authors, and has no associated output processing.


Note: These models represent only the default document types distributed by OASIS. Actual content models will differ with each new document type.
Doctype Content model
topic, concept, ditabase, glossary, glossentry, glossgroup, reference, task, machineryTask, learningAssessment, learningContent, learningOverview, learningPlan, learningSummary no content

Contained by

Doctype Content model
ditabase, glossary, glossentry, glossgroup glossentry
learningAssessment learningAssessment
learningContent topic, task, concept, reference, learningSummary, learningAssessment
learningOverview learningOverview
learningPlan learningPlan
learningSummary learningSummary


- topic/no-topic-nesting


This element is not intended to be used in source files.


Name Description Data Type Default Value Required?
global-atts attribute group (xtrf, xtrc) A set of related attributes, described in global-atts attribute group      
class A common attribute described in Other common DITA attributes      

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OASIS DITA Version 1.2 -- OASIS Standard, 1 December 2010
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