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A Process Walk Interview Sheet would be completed for each process step. So, if you interview 3 people that do the same thing, the data would be collected for the process once, not 3 times. But ideally, you want each step of the process with the information filled out so you can build a process map. It might be a Value Stream Map that you decide to build, and you need this information for each step of the process to build a VSM.

Tracy O'Rourke

Tracy is a Managing Partner & Executive Advisor at She is also a Lean Six Sigma Green Belt Instructor at University of California 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.