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I have seen a SIPOC used this way, where the S/I and O/C are broken out for each step of the process. My perspective is if the tool works, use it. If there is a process issue where it would help to list out the S/I and the O/C at each step of the process, then by all means, use it. I have seen the SIPOC taught this way, and it wasn’t difficult to understand for the participants at that time.

Tracy O'Rourke

Tracy is a Managing Partner at She is also a Lean Six Sigma Green Belt Instructor at UC San Diego and teaches in San Diego State University’s Lean Enterprise Program. For almost 20 years, she has helped leading organizations like Washington State, Charles Schwab and GE build problem-solving muscles.