This chapter discusses project integration management, which involves developing comprehensive project plans, executing those plans, and managing changes. It describes developing project plans by combining outputs from other planning processes. Plan execution involves carrying out the planned work, while integrated change control coordinates changes across the project. The chapter outlines the key processes, common plan elements, stakeholder analysis, and tools to support integration like change control boards and configuration management. Project management software can help pull everything together to achieve overall project success through good integration.