University of California

General Atomics, Inc.

Bertram Ludaescher

Amarnath Gupta

Reagan W Moore

Arcot Rajasekar

Chaitanya K Baru

Richard J Marciano

Maryann E Martone

A persistent archive of a collection of data objects comprises a self-describing, infrastructure-independent representation of a logical structure for the collection and a self-describing, infrastructure-independent representation of the data objects. The archive is persistent in that it may be instantiated at an indefinite point in time in the future regardless of the state of technology at that time. A knowledge-based persistent archive of a collection of data objects comprises the foregoing two elements but also a self-describing, infrastructure-independent representation of knowledge relevant to the collection. Another embodiment of a knowledge-based persistent archive comprises at least one representation of a collection or the data objects, at least one self-describing, infrastructure-independent, or executable specification of one or more transformations relevant to the collection, and at least one self-describing, infrastructure-independent, or executable specification of one or more rules relevant to the collection.

Persistent archives

A method and program product for integrating different data sources has steps of obtaining semantic information from each of the different data sources (), creating a conceptual model of () the data source using the semantic information, and accessing one or more secondary knowledge sources. The secondary information sources contain information regarding the relations of data from different of the databases, so that an integrated semantic model of all of the databases () may be created. Queries can then be processed using the integrated semantic model.

Data source integration system and method

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San Diego, CA, United States of America

Bertram Ludaescher