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Event-processing system and method of constructing such a system

  • US 5,691,917 A
  • Filed: 05/05/1995
  • Issued: 11/25/1997
  • Est. Priority Date: 06/10/1994
  • Status: Expired due to Term
First Claim
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1. An event processing system for receiving and processing event information about basic events occurring in a system monitored, said basic events comprising changes in state in said system being monitored, the event-processing system comprising:

  • a plurality of discrete event-processing nodes, at least one event processing node being coupled to said system being monitored, each operative to process event data items, each said event data item relating either to a basic event or to a combination of such basic events and having event data that is indicative of a nature and time of occurrence of said basic event or combination of events, as the case may be, in the system being monitored, each node receiving at least one input of said event data items which it processes to produce at least one output stream of said event data items; and

    means for coupling said nodes to form a network of nodes in which output streams of at least some said nodes form input data streams of other of said nodes, said at least one event processing node coupled to said system being monitored and constituting an input node for receiving said event information in the form of at least one said input data stream, said nodes, as so coupled, facilitating assessment of system operation.

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