Abstract
The study offers a current view on bibliographic metadata, integrated into the broader context of the global information environment of the Semantic Web. It points out the relative nature of metadata definition and their intersection with related entities.
It presents the theoretical problems of defining the concept of metadata caused by the missing generally accepted definitions of data, information resource and document. It describes important aspects from which to look at metadata: metadata as a structure, including the structure of the metadata in the Semantic Web, metadata as a function, language, and model.
It proposes a general metadata typology based on facet analysis. Attention is paid to bibliographic metadata, which are created by memory and fund institutions.
Possibilities of integrating bibliographic metadata created by libraries into Semantic Web are considered.