SIAM (Service Integration and Management) is an evolution of service management that focuses on managing multi-provider environments through collaboration and an end-to-end perspective. It is a response to more complex sourcing environments and is essential for managing cloud services. SIAM involves defining roles and governance, mapping existing services, selecting providers, and transitioning to the new model through an iterative process of discovery, planning, implementation, and improvement. The upcoming SIAM Professional Body of Knowledge will provide an in-depth look at what is involved based on the Foundation Body of Knowledge roadmap.