@Chad_z
I don't think SOA and Cloud are quite the same thing, although some would argue that you can't have a cloud environment without a service-oriented architecture. SOA is more about dealing with problems inherent in the lack of interoperability with different systems in an IT department and making services loosely-coupled (black boxes with hidden implementation). The public cloud is an example of a service-oriented architecture in that it abstracts out the implementation of a certain service (how you procure and set up a server in the case of IaaS, the load-balancing and application hosting in PaaS, and the all of the above + data storage and updating in SaaS). In the case of a private cloud, offering your internal servers and virtual machines as a service and having oversight and governance over those VMs while the actual users have relatively simple provisioning experience is an example of a service-oriented architecture, but it is not the all-transforming, IT-wide SOA that has brought so many enterprises to their knees.
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