]> 2012-05-28T00:27:54-04:00 Alvaro Semantic Obligation Policies Joshua Shinavier 1 The authors state that "the problem of policy concurrency is addressed by the implicit serialization of events as enforced by our streaming model". However, they also claim that the compiler is able to "plan with large numbers of event sources". When there are multiple sources involved, concurrency certainly is an issue. It is not clear how the compiled policy, a "plan" in Stream S, would go about combining events from multiple sources. Under what conditions can event descriptions from two different sources serve as input to be matched by a single event pattern? Alvaro Semantic Obligation Policies Question for the Presentation Joshua Shinavier Question asked by Question asked Presentation Questions