Knowledge organisation systems, such as taxonomies, thesauri or subject
heading lists, play a fundamental role in information structuring and access.
The Semantic Web Deployment Working Group aims at providing a model for
representing such vocabularies on the Semantic Web: SKOS (Simple Knowledge
Organisation System).
This document presents the preparatory work for a future version of SKOS.
It lists representative use cases, which were obtained after a dedicated
questionnaire was sent to a wide audience. It also features a set of
fundamental or secondary requirements derived from these use cases, that will
be used to guide the design of SKOS.