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Relation to Classification Scheme Alphabetical and hierarchical Number of locations for a term Facets
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ORGANIZATION OF ELEMENTS OF INFORMATION
The Thesaurus
ThesaurusFrom Greek, meaning “treasure”A compilation of words and phrases showing synonymous, hierarchical, and other relationships and dependences, the function of which is to provide a standard vocabulary for information storage and retrieval--ANSI
Relation toClassification Scheme
Alphabetical and hierarchicalNumber of locations for a termFacets
PurposePromote consistent representation of subject matterLink terms related either permanently or transitorily
HistoryPeter Mark Roget Society for the Diffusion
of Knowledge Thesaurus of English Words
and Phrases Classified and Arranged so as to Facilitate the Expression of Ideas and Assist in Literary Composition (1852)
HistoryInformation retrieval thesaurus, 1960s-
Structure
Structure
Structure
Structure
Hierarchical RelationshipsBroader Term (BT): ScienceNarrower Term (NT): Physics
Hierarchical relationshipsGenus-species Partitive
Hierarchical relationshipsExamples
Affinitive/Associative Relationship “RT”
Affinitive/Associative Relationship “RT”
DescriptorsNouns, phrases Gravity Specific gravity Center of gravity
DescriptorsSplit Multiple classes
Children’s books
Retain compound Take more than
one way Plate glass/glass
plate
Scope note “SN”Define or clarify the term
Preferential relationshipEquivalent of “see” reference in index “Use” and “Use for”
Use: stamp collectingUse for: Philately
Preferential relationshipExample
DisplayAlphabetical
DisplayHierarchical
ConstructionConsolidationOriginal indexingMaintenance
http://www.niso.org/standards/resources/z39-19a.pdf
EvaluationBreadth of coverageHandling of structural relationshipEffectiveness of display
Thesaurus - ERIChttp://www.ericfacility.net/extra/pub/
thessearch.cfm
ThesaurusExamples online:
NASA: http://www.sti.nasa.gov/thesfrm1.htm
UNESCO:http://www.ulcc.ac.uk/unesco/
Solution