Data about data. Metadata describes how and when and by whom a particular set of data was collected, and how the data is formatted. Metadata is essential for understanding information stored in data warehouses and has become increasingly important in XML-based Web applications.
Metadata at W3C W3C's metadata activity information page. Contains links to news, events and publications, as well as project groups, recommended reading, and related W3C activities.
Metadata indices and HTML interface This paper discusses the utility of relational database-based metadata catalogs in keeping track of astronomical and geophysical observations, the use of WWW servers and client forms to allow access to the catalogs, graphical interfaces, and a proposal for a distributed system of databases serving the entire astronomical and geophysical community.
Metadata standards directory This sites hosts a collection of links to geographic data, metadata and interchange standards, metadata standards and resources, multilingual tools and services, and links to Web sites containing geographic information.
