Enterprises around the world are facing a momentous transformation, as they move away from traditional, inflexible approaches to leveraging information technology (IT) resources to a more agile way that helps to improve business process. This transition from an aggegration-centric view of technology that leads to brittle assemblages of heterogeneous assets to the composition-centric view that positions IT resources as flexible services that the business can compose together to support and manage flexible processes heralds a new era of value to organizations.  Underpinning this transition is the move to Service-Oriented Architecture (SOA), which provides best practices for organizing IT resources to enable organizations to better leverage business change.