Name:	Ei Thesaurus
Publisher:	Elsevier Engineering Information
Type:	Thesaurus
Categories:	Engineering
Description:	The Ei thesaurus is used for indexing and retrieval of engineering articles and conference papers in the Ei Compendex ® database. The Ei Thesaurus is structured hierarchically, showing descriptors together with scope notes, broader, narrower and related terms to allow a selection of the most appropriate search terms. The thesaurus also includes classification codes up to five levels in depth with descriptors linked to appropriate codes.
Total Terms:	19296
Top Terms:	85
Preferred Terms:	9926
Non-Preferred Terms:	9370
Relationships:
Levels:	5
Notation Scheme:	No
Notation Description:
Relationship Types:	Associative, Equivalency, Hierarchical
Notes Fields:	Scope
Multilingual:	No
Languages:	English
Additional Information:	Total terms includes 5,657 "prior terms" that are no longer active but remain in the database.
Revision Cycle:	Irregular
Last Updated:	2006
Formats:	Print Publication, Subscriber Online
Informational URL:	http://www.ei.org/news/news_2007_02_12.html
Online/Download URL:	http://www.engineeringvillage.org