Distributed Semantic Constraints in Virtual Enterprise Information Integrating Systems
Xiaochun Yang, Ge Yu, Guoren Wang · International Journal of Computer Processing Of Languages · 2001
With the explosive growth of the Worldwide Web, research on constraints in different databases has become increasingly important. How to interoperate heterogeneous Virtual Enterprise (VE) information sources, and how to enforce enterprise logic across multi-enterprise information sources are problems attracting some attention. The existing approaches defined enterprise logic in advance that result in poor flexibility, reusability and practicability. In order to solve these problems, a cooperative constraint description for different kinds of distributed constraints is proposed. The constraints classification has been done through the Constraint Definition Language LC. In order to manage these constraints among different enterprise information sources effectively, the properties of distributed constraints are presented, and Active Rules are incorporated to support constraints of enterprise-wide information processing. Further, some novel implementation issues including classifying enterprise event, static and dynamic definition methods for Enterprise Event Object (EEO) and the scheduler model in a CORBA based VE information integrating system, ViaScope, are presented.