© 2004 Cayman Business
Systems
Rev:
Pre-G3 - Rendered Thursday,
February 12, 2004
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∆Who? - Identity individuals associated
with the problem. Characterize customers who
are complaining. Which operators are having difficulty?
∆What? - Describe the
problem adequately. Does the severity of the problem vary? Are operational definitions clear (e.g.
defects)? Is the measurement system
repeatable and accurate?
∆When? - Identify the time
the problem started and its prevalence in earlier
time periods. Do all production shifts experience the same frequency of the problem? What time of year does the
problem occur?
∆Where? - If a defect
occurs on a part, where is the defect located? A location check sheet may help. What is the geographic
distribution of customer complaints?
∆Why? - Any known explanation(s)
contributing to the problem should be stated.
∆How? -
In what mode or situation did the problem occur? What procedures were
used?
∆How Many? - What is the extent of the problem? Is the process in statistical control?