Project Integration Management involves five key processes: 1. Develop Project Charter - Defines the project. 2. Develop Project Management Plan - Guides how the project will be executed. 3. Direct and Manage Project Execution - Performing the work outlined in the plan. 4. Monitor and Control Project Work - Tracking progress and addressing issues. 5. Perform Integrated Change Control - Reviewing and approving/managing changes. These processes span the project lifecycle from initiating to closing and involve balancing the project's scope, schedule, costs, quality, resources, risks, procurements and stakeholder engagement.