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2.0 Capability Analysis: What does it look like?
A courier company has set up a team to look at the actual arrival time at customers’ locations to pick up packages, in comparison to the scheduled arrival time. The company guarantees pick up of packages within 14 minutes of the scheduled time. It is unacceptable to customers for the courier to arrive early. Therefore, there are two requirements: on time and up to 14 minutes late. The result of the capability analysis for this example follows.
 = 2.00 |
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Zupper = 2.00 |
Zlower = 5.00 |
Cpk = 0.67 |
Cp = 1.17 |
Cpu = 0.67 |
Cpl = 1.67 |
A capability analysis like this can be accomplished using software like CHARTrunner and SQCpack.
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