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Event-driven Systems

Event-driven communication paradigm

asynchronous message-passing rather than request-reply

advertise, subscribe, publish/notify for scalability

e.g. subscribe to and be notified of:

bus-seen-event (busID=uni4.*, location=*)

event-driven paradigm for ubiquitous computing: sensors generate data, notified as events

compose/correlate events for higher level semantics

e.g. traffic congestion, pollution and traffic

database integration – how best to achieve it?

Event-driven Systems

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