The document discusses various types of controlled vocabularies and metadata that can be used to organize information, including synonym rings, authority files, classification schemes, thesauri, and faceted classification. Controlled vocabularies and metadata help improve search, navigation, and information retrieval by establishing relationships between terms and standardizing language. Faceted classification in particular allows information to be organized from multiple perspectives using different facets or attributes.

1. Thesauri, Controlled Vocabularies, and Metadata Information Architecture

6. Controlled Vocabulary

8. Types of Controlled Vocabularies Simple Complex (Relationships) (Vocabularies) Synonym Rings Authority Files Classification Schemes Thesauri Equivalence Hierarchical Associative

17. Controlled Vocabulary Associative Relationship Preferred Term Broader Term Variant Term Variant Term Related Term Related Term Narrower Term Associative Relationship Hierarchical Relationship Hierarchical Relationship Equivalence Relationship Equivalence Relationship

20. Types of Thesauri Searching Thesaurus No tagging of content Can enrich queries Indexing Thesaurus Enables browsable indexes value untapped By search No Thesaurus Natural language search Classic Thesaurus High-end full Function tool Thesaurus Used in Indexing Thesaurus used in searching