A SIPOC diagram is a high-level view of a process which stands for Suppliers, Inputs, Process, Outputs, and Customers. Every Process starts with Suppliers who provide Inputs to the Process which results in an Output that is delivered to Customers.
By creating a SIPOC diagram, you effectively kick-off your process improvement project with a standard definition of the process to be improved. This way, you can rest assured that your team members move forward with perfect alignment. A SIPOC diagram can then be used as a launchpad for creating a detailed process map, which occurs during the Define Phase of the DMAIC strategy. Having a well-defined SIPOC diagram sets your team up for success at the beginning of your Lean Six Sigma process improvement project.