My names Justin King, I'm a part of a research project at Swinburne University of Technology in Melbourne, Australia. my question is in regards to the new Drools and more specifically fusion. I'm having trouble determining whether Fusion might fulfill a requirement of our project so maybe you can help me out. Essentially we are in need of an Event Condition Action (ECA) engine. We wish to be able to define trigger the firings of certain rules based on an event occurring inside our system, e.g. a timer going off. Any sets of rules listening for this event should evaluate their 'when' conditions and execute their 'then' actions. So essentially its something like: Event: Timer expires Rule: rule 1 Event Timer expires Rule: rule 3 So rule 1 and 3 have now 'subscribed' to the timer event. so rule 1 might be something like CONDITION 'if students have not finished their exam' ACTION 'fail students' Does drools fusion allow for this type of ECA pattern, or is it a different form on engine. Thanks very much, Justin King Faculty of I.C.T. Swinburne University of Technology, Melbourne, Australia