Many may understand the notion of SOA, but very few have any idea how to get there. Truth-be-told, there is no hard and fast rule as to how one builds an SOA in their organization. Clearly, SOA is a situational thing and your mileage may vary. However, some common patterns are emerging which may provide a guide toward implementing an SOA, either in the fast track (revolutionary) or the slow track (evolutionary)-as long as you’re on the right track.