I need a discussion post for this: A process map is a tool that graphically shows the inputs, actions, and outputs of a process in a clear, step-by-step diagram of the process. Process maps are a part of Lean Management and are known as tollgate # 3 of Define in the DMAIC. Note that it is also used in most other major management systems. The purpose of process mapping is to help team members and others within the process to understand the process.