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从业内趋势来看，SOA不仅是一种架构风格，而且渐渐发展成为企业信息系统领域的事实技术标准。 “SCA/SDO/BPEL”是SOA的铁三角，IBM、SAP、Oracle等标准制定者已经参与制定或采纳了相关标准，初步完成了内部解决方案的改造。-Trends from the industry point of view, SOA is not only an architectural style, and gradually developed into the fact that