Analysis of information sources in references of the Wikipedia article "Process performance index" in English language version.
However, please note that if the process is not in control, the indices Pp and Ppk have no meaningful interpretation relative to process capability, because they cannot predict process performance.
Unless the process is stable (in control), no index is going to carry useful predictive information about process capability or convey any information about future performance.
However, please note that if the process is not in control, the indices Pp and Ppk have no meaningful interpretation relative to process capability, because they cannot predict process performance.
Unless the process is stable (in control), no index is going to carry useful predictive information about process capability or convey any information about future performance.
However, please note that if the process is not in control, the indices Pp and Ppk have no meaningful interpretation relative to process capability, because they cannot predict process performance.
Unless the process is stable (in control), no index is going to carry useful predictive information about process capability or convey any information about future performance.