Welcome to Service Oriented Architecture For Dummies, 2nd IBM Limited Edition. Service Oriented Architecture (SOA) is the most important technology initiative facing businesses today. SOA is game changing, and early SOA successes make it clear that SOA is here to stay. This book introduces you to the basics of SOA in context with the real life experiences of seven companies. Seen through the varied business environments depicted in each of the case studies, we hope you will recognize that SOA is more than a bunch of new software products strung together to allow technology companies to have something else to sell. SOA represents a dramatic change in the relationship between business and IT. SOA makes technology a true business enabler and empowers business and technology leaders alike.