CIM through Database Coordination

Title CIM through Database Coordination
Author(s) M. C. Norrie, W. Schaad, H.-J. Schek, M. Wunderli
Type inproceedings
Booktitle Proc. of the Int. Conf. on Data and Knowledge Systems for Manufacturing and Engineering
Organization Institute of Information Systems, ETH Zurich
Month May
Year 1994


We describe an approach to the realisation of CIM systems through the coordination of autonomous component systems based on the exploitation of multidatabase technologies. Each component system is augmented by a CIM Agent which provides a coordination interface; the interface specifies globally important local objects in terms of a global semantic data model. System-wide consistency is ensured through the management of global constraints by a central coordinator along with cooperative multi-level transaction schemes. The CIM Agents are responsible for monitoring local activities and notifying the central coordinator of updates relevant to global consistency; they are also responsible for initiating local actions necessary for the maintenance of system-wide consistency as delegated by the coordinator.
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