Service Oriented Architecture (SOA) represents the best opportunity companies currently have to align their IT resources and business processes and make their systems more agile. There has been a lot of talk about SOA and many different definitions have been proposed. In essence, SOA is an architectural approach that seeks to align business processes with service protocols and the underlying software components and legacy applications that implement them. Both processes and services need to be carefully coordinated to assur e an effective SOA implementation. You can’t really do SOA without a clear model of the business process to be supported. And you can’t link your business processes to your service models without the modeling standards the OMG is developing as part of its Model Driven Architecture® (MDA®). e an effective SOA implementation. You can’t really do SOA without a clear model of the business process to be supported. And you can’t link your business processes to your service models without the modeling standards the OMG is developing as part of its Model Driven Architecture® (MDA®).