Cloud computing is Internet based development and use of computer technology. It is a style of computing in which typically real-time scalable resources are provided “as a service†over the Internet to users who need not have knowledge of, expertise in, or control over the technology infrastructure ("in the cloud") that supports them.
SOA is "Service-Oriented Architecture" and WOA, a more recent concept, is "Web-Oriented Architecture." Through WOA, EA & Governance practices are being used these days to ensure business alignment, proper sharing and quality while also using lightweight protocols to drive barrier-free consumption and composition.
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