I agree with Rob. However, coupling between sender and recipient in EDA is shifted into more delicate area of intentions (sender) and interests (receiver). How technically quantify these categories is a question. - Michael
________________________________ From: Rob Eamon <[EMAIL PROTECTED]> To: [email protected] Sent: Tuesday, December 2, 2008 8:42:39 PM Subject: [service-orientated-architecture] Re: Roch Clarifies Some Key Terms Not a bad set of definitions. A couple of discussion items: EDA is not necessarily pub/sub. EDA does not result in "completely decoupled" systems. In a brokered/intermedia ted approach, they are more loosely coupled, but are still coupled in two ways: 1) the messages they exchange; 2) the mechanism over which they exchange them. While the recipient doesn't care exactly where the message originated, it cares that *something* originates it and does so via the intermediary to which it is connected. -Rob
