Expanded Question: I am working on a SIPOC diagram for an urgent care facility. The test facility is the Supplier. I can’t figure out the Input, but the Output was provided which is Diagnosis and the Customer is the Doctor… To access this post, you must purchase Go-Getter Membership. LeanSIPOC Evans Kerrigan Evans Kerrigan is a Managing Partner at Integris Performance Advisors. He has spent 20 years assisting organizations to improve their management practices and business processes.