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SPI/GB/Dec02 Quality Process Charts So, What Is QPC And Why And When Should I Use It!!? It’s “Real Time” Process Data That Is: Collected Daily Summarized Weekly Those Who Know Best Help Collect the Data and Solve Problems. Who? Engineers! Buyer/Planners! Customer Support! etc. It is a Structured Process For Identifying Problems. It Asks: Do You Really Know Your Problems? Are You Sure? Quality Scoreboard! Posted Where Everyone Can See! QPC vs. ISO Flow Charts QPC Generally more detailed Geared to capturing data at each process step Works best for repetitive,”how-to” processes Some different symbols than ISO ISO Generally higher level Geared to showing flow paths and participants Often refers to lower level procedures or sub-processes The Quality Process Chart Is A Simple Tool To Help Improve Product And Process Quality. It Is A Program By Which We: Let’s Try Creating A QPC Process Flow! Let’s Look at Problems That Could Occur While Commuting To Work? Let’s Create Some Problem Data For Your QPC Chart! We Call These Types of Problems Turnbacks. Turnbacks Can Be Either... Defects Any quality activity. Any rework, errors and mistakes. Lost or missing information. Any incorrect work instructions. Process Inefficiencies Reprocessing parts through any portion of an operation. Details not at “point of use” (information.) Equipment failures. Instructions incorrect or missing. Ergonomic improvements needed. Supplies unavailable Definition “TURNBACK” Any disruption to the flow of the process that causes reprocessing or delays Now That You Have All This Data... Collect Data Weekly To Update Your QPC Chart. Use the Data You Collected To Calculate Your Turnback Ratio! Add Turnback Ratios To Determine Total Process Performance for the Week! Turnbacks and Turnback Ratios Can Tell You How Well Your Process is Working! Turnbacks Lead To: What We Would Like to Do is Pareto the Data! Use the Data to Prioritize Your Teams Activities! QPC Data Prioritization There Are All