A Logical Model for Metadata in Web Bases

In systems that provide integrated management of both structured, database{style, data and semistructured, Web-style, data, metadata may allow for the explicit management of information about the structure and data content of pages. Unfortunately, the HTML standard doesn't o er any explicit framework for document metadata management. The eXtensible Markup Language vice versa allows for the explicit description of the structure of a document, but it lacks of database perspective. The aim of this paper is then to describe an approach to the generation of database{derived Web meta{information that is based on a logical model for Web pages and to show how this approach can be e ectively used for both HTML{ and XML{based systems.