This document discusses various good practice frameworks for IT service management including ITIL, COBIT, PMBOK, Six Sigma, and CMMI. It provides overviews of each framework including their purpose, history, and scope. The frameworks are compared and it is shown how they can be integrated together using a common set of concepts around processes, roles, policies, and documentation. While the frameworks have complementary goals, organizations must understand when and how to apply each one to drive business needs and keep communication open between experts. Bringing the frameworks together in a structured way provides benefits, but cautions include knowing when to use or remove a framework to avoid needless complexity.