The goal of the SOA approach is to deliver a business solution that enables business agility, not to build a SOA. Reuse of services is often stated as a goal of SOA, and while it is true that reuse can be a good by-product of SOA, it is not the end goal itself. The first step in any SOA implementation, therefore, is to identify key business integration challenges or priorities. Development efforts, implemented along principles of SOA, are chosen such that they:
1) best meet the stated business needs,
2) offer the fastest time to value, and
3) best support long-term growth of the business.