##### 3.1.5.2 Classification domain elements

The classification domain elements are used to identify the subject matter of content that is referenced in a map. These subjects must be subjects defined in a subject scheme map. In particular, this allows an author to classify content in new subject categories that are not bound to existing metadata attributes.

Previous Topic: 3.1.5.1.19 subjectRole

Next Topic: 3.1.5.2.1 subjectref

Parent Topic: 3.1.5 Classification elements

Child Topics:

3.1.5.2.1 subjectref

3.1.5.2.2 topicapply

3.1.5.2.3 topicsubject

3.1.5.2.4 topicSubjectTable

3.1.5.2.5 topicSubjectHeader

3.1.5.2.6 topicSubjectRow

3.1.5.2.7 topicCell

3.1.5.2.8 subjectCell

Sibling Topics:

3.1.5.1 Subject scheme maps