Projects generate a lot of details especially if the project management workflow progresses near its end. Even if project managers do proper monitoring and execution processes, there are still a lot of tasks that need to be completed as the project nears its completion.
The closing process group is made up of all final processes that are needed to close a project as well as deliver the final products including reports to the stakeholders. Once completed, this particular process verifies the processes as well as formally establishes the completion of a project or a project phase.
It also establishes the premature closure of projects. These projects include aborted and cancelled projects as well as those that are in critical situation. During the closing process group, project managers need to gain acceptance from the sponsor or customer to formally close the project. A post-project review should also be conducted and documents of the lessons learned should also be created. Moreover, all relevant documents should be archived as historical data and all procurement activities should also be terminated. Simply put, the closing process group enables the formal closure of the project management implementation.
This term is defined in the 5th edition of the PMBOK.