BSI, 2008. — 62 p.
This part of BS 8723 gives recommendations for structured vocabularies, when two or more of them are required to interoperate for the purposes of information retrieval. Since any one concept is typically represented by different terms or notations in different vocabularies, the emphasis is on establishing equivalences or other relationships between the various representations of each concept. The case of a multilingual thesaurus, although in one sense this is a single vocabulary,
is included within the scope as a special case of interoperability between vocabularies in different languages. There are no comparable provisions for multilingual classification schemes, since their notation applies equally across all languages and the need for equivalence relationships between terms does not arise.