Technological problems for supporting multi-purpose usage of Internet metadata catalogues

The paper attempts to give an overview of current technological problems for supporting Internet metadata catalogues. Based on the examples of a Web-site catalogue authors present the architecture, introduce underlying objects and data structures used for their representation in the database. The process of the catalogue content management is described along with the components and tools participating in the process. The set of functional requirements for catalogue subscriber service subsystem is discussed and some solutions are proposed.