In the larger schema of things, SOA would espouse general, more abstract concepts of software reusability and encapsulation within certain boundaries (as to then provide access to that software via defined interfaces), Web services would then make these SOA concepts vendor-independent due to their use of generally accepted standards, while BPM and BPEL would be some of the engines making the whole system work.
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conjunction with the core ERP and back-office systems create a greater need for application and data integration, whereby any application must be able to communicate with external applications fairly easily and simply. Since a great deal of the cost of implementation is often actually that of integration, extensibility has significant implications on cost and performance. From the above discussion, applications that embrace the SOA concept and provide standard-based Web Services should significantly