As enterprises today increasingly depend on IT to help drive business innovation and provide competitive differentiation many are turning to web services and Service Oriented Architectures (SOA) to create the flexible and agile IT infrastructure necessary to be able to be responsive to changing business demands. The potential for Web services to deliver considerable business benefits by connecting organizations to partners and customers cannot be overlooked in today's intensely competitive marketplace. However, the flexibility provided with web services also introduces a significant degree of complexity that is consistently underestimated.