When you ask for Cp (or Cpk), are you really getting Pp (or Ppk)?

OK, I admit it: I was trying to be funny in the title. But the issue is how capable is a capability study? Or, to state it another way: When should we be careful in how much we trust our capability study results?

Here are three items we should be aware of when designing, running and calculating a capability study:

Linking facility systems to a standard corporate platform reduces inventory, improves response time to demand changes and enhances internal communication.