ion Space decoupling Time decoupling Flow decoupling Message Passing no no server-side RPC/RMC no no server-side Oneway/Future RMC no no yes Notifications (Observer) no no yes Tuple Spaces yes yes producer-side Message Queuing yes yes producer-side Publish/Subscribe yes yes yes Table 5.1: Decoupling provided by the different abstractions Table 5.1 summarizes what kind of decoupling the differen...