SOA has been a buzzword in enterprise computing for a while. Cloud computing is relatively new one but gaining stronger momentum than SOA. With these two terms, many people get a little confused: is cloud computing just a new name for SOA? And can they play together?
Before drawing a conclusion, let’s take a look at the definitions from wikipedia.org:
Service Oriented Architecture (SOA): is a flexible set of design principles used during the phases of systems development and integration. A deployed SOA-based architecture will provide a loosely-integrated suite of services that can be used within multiple business domains.
Cloud Computing: is Internet-based computing, whereby shared resources, software and information are provided to computers and other devices on-demand, like a public utility.
As we’ve read in various articles and books, SOA is mainly for enterprise; the cloud computing is, as its definition points out, Internet based services. In my previous blog, I mentioned cloud as architecture pattern (CAA), which can be leveraged in enterprises as well. If we compare the SOA and CAA, they look somewhat similar and share some core principles: