Knowledge-based validation, aggregation, and visualization of meta-data: Analyzing a web-based information system

Abstract

As meta-data become of increasing importance to the Web, we will need to start managing such meta-data. We argue that there is a strong need for meta-data validation and aggregation. We introduce the Spectacle Workbench for verifying semi-structured information and show how it can be used to validate, aggregate and visualize the metadata of an existing Information System. We conclude that the possibility to verify and aggregate meta-data is an added value with respect to contents-based access to information.