Active Object-Oriented Database Systems For CIM Applications

. Object-oriented database systems (OODBS) have gained wide attention as the most promising database technology for non-standard applications like computer aided design and computer integrated manufacturing. Among the most important requirements of these applications which are supported by OODBS are complex object modeling, advanced transaction management, and version management, to mention just a few. Active database systems (ADBS) have reached equal potential for non-standard applications as they offer event driven and constraint driven behavior of the database system necessary for implementing time critical reactions. For example, manufacturing plants need timely support of raw material and assemblies to keep going the manufacturing process. Active object-oriented database systems (AOODBS) provide the best of both worlds. They are based on one hand on an object-oriented data model for representing the objects of the problem domain, and on the other hand on a rulebased knowledge mode..