Fusing enterprise architecture - Express Computer

Fusing enterprise architecture - Express Computer

The key challenge for adopting SOA in the enterprise is the decision on sizing the service. What I mean by sizing is the problem that services that have too many capabilities built into it are not very flexible because of too many dependencies and difficultly in managing the WS contract, and on the other hand if the service is too small then it cannot be directly used almost to a point where it is not useful. I have seen business team spend huge amounts of time to determine what should go into a service and what capabilities emcompass a complete business function.