Building SOA Your Way

摘要

A fault line runs beneath the groundswell that began a few years ago with XML Web services and continues today as SOA (service-oriented architecture). True, nearly everyone agrees that XML messaging is the right way to implement low-level, platform-agnostic services that can be composed into higher-level services that support enterprises business functions. Yet, here's also a sense that the standards process has run amok. IBM, Microsoft, and others have proposed so many Web services standards that a new collective noun had to be invented: WS-~* (pronounced "WS star" or sometimes "WS splat"). The asterisk is a wild card that can stand for Addressing, Eventing, Policy, Routing, Reliability, ReliableMessaging, SecureConversation, Security, Transactions, Trust, and a frighteningly long list of other terms. Surveying this landscape, XML co-creator Tim Bray pronounced the WS-~* stack "bloated, opaque, and insanely complex."