Implemented Applications of the Carnot Heterogeneous Database System

摘要

The Carnot project integrated a variety of techniques to achieve interoperation in heterogeneous environments. We describe four major applications of this project, concerning (a) accessing a legacy scientific database, (b) automating a workflow involving legacy systems, (c) cleaning data, and (d) retrieving semantically appropriate information from structured databases in response to text queries. These applications support scientific decision support, business process management, data integrity enhancement, and analytical decision support, respectively. They demonstrate Carnot's capabilities for (a) heterogeneous query processing, (b) relaxed transaction and workflow management, (c) knowledge discovery, and (d) heterogeneous resource model integration.