Project Management Knowledge Guide (PMBOK Guide) The fifth edition provides guidance on managing individual projects and defines concepts related to project management. It also describes the life cycle of project management and related processes, as well as the life cycle of the project. The PMBOK Guide contains a globally recognized standard and guidance for the professional field of project management in Annex A1. A standard is an official document that describes established norms, methods, processes, and practices. As in other professional areas, the standard draws on the best practices of practitioners in project management who have contributed to the development of the standard. The first two sections of the PMBOK Guide introduce key concepts in project management. Section 3 summarizes the process groups, and provides an overview of the process interactions within the ten knowledge areas and the five process groups. Sections 4 to 13 are a guide to the Project Management Body of Knowledge. They extend the information of the standard by describing the inputs and outputs, as well as the tools and techniques used in project management. Annex A1 is a project management standard that summarizes processes, inputs, and outputs that are generally considered good practice for most projects in most cases. This section defines several key terms and the relationship between portfolio, program, project and organizational project management. The following sections provide an overview of the PMBOK Manual: