Abstract
Submitted study folows the previous one published in 2014 which was devoted to ""knowledge organization system"" term definition and to typology issues of such systems. The new study is aimed at problems of their descriptive metadata.
The study is based on representative set of knowledge organization system records processed and stored in the prototype of knowledge base, which is prepared within the project DF13P01OVV013 ""Knowledge base for the subject area of knowledge organization"" as part of the NAKI Programme. The data collection representing these systems pointed out a necessity to describe these systems as entities of very changeable character, from the beginning of their creation, via their current transformations, up to their contemporary representations in free available structures of linked open data given by semantic web technologies.
The study presents the result of these systems description in knowledge base proposal which is based on general principles of FRBR conceptual model, and on NKOS Application Profile - metadata elements for knowledge organization systems description being prepared by Dublin Core Metadata Initiative Networked Knowledge Organization Systems (DCMI NKOS) Task Group. Designed metadata schema is compared with existing metadata schemas used for similar purposes.
The study comprises selected examples set of these systems description main types (classification schemes, thesauri, subject headings schemes). Keywords: knowledge organization systems, metadata description, metadata elements, NKOS Application Profile, FRBR conceptual model, knowledge base.