A descriptor, or preferred term, is any term that can be used to search project databases and indexes. A term that can be looked up but cannot be used for searching the descriptor field is called a non preferred term. In the Alphabetical Hierarchical Display, non preferred terms appear with USE references directing the user to the appropriate preferred term. For example, neglected children USE child neglect. The Thesaurus is composed of descriptors and identifiers.
Descriptors refer to concepts and subject areas, rather than specific entities.
Descriptors are not proper names. Identifiers include the proper names of programs, agencies, public laws, organizations, projects, departments, etc. Descriptors and identifiers are listed together, in one alphabetical display. This Thesaurus is a valuable tool for professionals who search for information about Head Start program areas. The thesaurus will help users formulate search strategies using the controlled vocabulary to target and retrieve precise information quickly and efficiently.