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“The main aim in producing this reference work is to try to standardise the terminology in the field of astronomy for the purposes of aiding unambiguous library cataloguing and more precise recall of data from computer databases. The thesaurus is intended for use by astronomy librarians and scientists. Its compilation was originally requested during a meeting of Commission 5 (Documentation) of the International Astronomical Union at the New Delhi General Assembly of the IAU in 1984.
Vocabulary control has become essential in the use of online databases, particularly where those responsible for data input and for searching databases are nonspecialists. Consistency, particularly in the input to computerised databases, is imperative if there is to be high precision recall in information retrieval. Conversely, for those accessing databases (the output process), the selection of relevant terms or those most specific to the information request, will result in higher precision recall. The thesaurus is also designed to give the librarian, cataloguer or indexer, as well as the astronomer, a context for astronomical terms with which they may not be familiar.
Sections 1 to 6 of this introduction describe the background to the compilation of the thesaurus and technical details of its construction. For information on its use in …”
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