SOA's five not-so-easy pieces
In his latest post, Loosely Coupled's Phil Wainwright notes that "attention is starting to shift from the lower levels of SOA wherepeople argue about ESB, SOAP vs REST, security and other message-levelminutiae up to layers that merit a lot more thought than they've sofar enjoyed in SOA debate." He goes on to mention these higher-level concerns -- registry,policy, governance, semantics and business process management.