This document discusses the process of managing project knowledge according to the Project Management Body of Knowledge (PMBOK). It involves leveraging existing organizational knowledge and creating new knowledge to help achieve project objectives and contribute to organizational learning. Key inputs include the project management plan, project documents like a lessons learned register, and organizational process assets. Tools and techniques used include expert judgment, knowledge management, information management, and interpersonal skills. The main outputs are updates to the lessons learned register, project management plan, and organizational process assets.