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Daily Digest - July 1, 2008
Vocabulary Review
Control Chart - is a tool
used to determine whether a manufacturing or business process is in a state
of statistical control or not. If the chart indicates that the process is
currently under control then it can be used with confidence to predict the
future performance of the process. If the chart indicates that the process
being monitored is not in control, the pattern it reveals can help determine
the source of variation to be eliminated to bring the process back into
control. A control chart is a specific kind of run chart that allows
significant change to be differentiated from the natural variability of the
process. This is key to effective process control and improvement.
Daily Question
The quality manager of a company wishes to analyze the data that is coming
to him in the form of a list of defects that have occurred in the shipping
department. The report comes with defects listed chronologically as they
occurred, the cost of the repair necessary to correct each defect, the
person involved, and a description of the defect. The manager would like to
determine which of the defects should be corrected first according to the
frequency of the defect occurring. He should use which of the following
quality tools?
- Cause and effect diagram
- Sampling inspection
- Pareto diagram
- Quality critical path
Scroll down for correct answer
A Pareto diagram is a histogram, ordered by frequency of occurrence, that shows how many results were generated by type or category of identified cause. By using this tool the manager can identify the defects that occurred most often.
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