SERVICE-ORIENTED MODELING DISCIPLINES DRIVE SERVICE METAMORPHOSIS. During the
service-oriented modeling process, a service??™s state changes from intangible to physical. This
transformation is driven by the service-oriented disciplines that we are commissioned to pursue.
The normal course of evolution starts at a service??™s inception, during which a service emerges
as a concept, continues through its analysis and design phases, and finally evolves as a solution
service??”a physical executable. By and large, this path is implemented with newly created
services.
But can a physical solution service transform back into its previous intangible state? The
necessity to iterate through service modeling cycles leads to the conclusion that a service, no
matter how physical and established it is, will likely revert to an intangible state down the road.
Subsequently, it will find its way back to the production environment to continue carrying out
its operation. This path is not uncharacteristic of a software product. In fact, we often find that a
service is ???cloned??? and simultaneously appears in two environments: in a production environment
to ensure business or technological continuity, and in a design environment in which it is being
examined for future enhancements.
Our service-oriented modeling practice advocates the transformation of a service from
one state to another to maximize analysis, design, and architectural flexibility.
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