Knowledge organization

Michael Lesk has suggested that having one single standard knowledge organization system would be ideal.  It seems to me, however, that knowledge should be organized in a number of different ways each one of which may be optimal for a certain kind of knowledge use or problem solving.  Glossaries, dictionaries, encyclopedias, taxonomies, thesauri, ontologies, abstracts, indices, semantic networks, etc. each have their various different uses. This is scientific pluralism again.  Each entity can be characterized in a number of different ways.