LIST OF TABLES

E.1 Comparison of Applications of ES in U.S. and Japan
E.2 Comparison of KB Research in U.S. and Japan

2.1 Explanation of the Classes

3.1 Commercial ES Building Tools Developed in Japan
3.2 Fujitsu's Strategy for Expanding ES Usage
3.3 ES Development History of Top 5 ES-User Companies: Number of Applications by Year

5.1 Main Features of Communication Systems
5.2 Processing Elements' Implementation Technology

7.1 Total KBS Shells Shipped
7.2 Estimated Revenue From KBS Shell Sales
7.3 Databases Versus Knowledge