Process capability, Cpk and Ppk, normal distribution

Duration: 1 day

This training is aimed at all those who would like to learn more about the topic of process capability. It doesn't matter whether your suppliers require process capability or whether you want to describe and improve your own processes more precisely using process capability indices.

The aim of the training is to impart competence through theoretical basics and to establish the reference to practice by means of concrete examples and exercises.

Training contents process capability



  • Understanding processes and their variation / scatter (practical exercise).
  • Limits of natural variation versus tolerance limits
  • Normal distribution and Z-transformation

Process capability with normally distributed data

  • Z-value and Sigma Level
  • Process capability indices Cp and Cpk, Pp and Ppk
  • Short-term and long-term capability
  • Rational subgroups and diagnostic possibilities
  • Practical application examples

What to do with non-normally distributed data?

  • Root cause identification
  • Transformations and alternative distribution models

Process capabilities according to VDA4


Dates and detailed information for the Process Capability Training
are available on request.

Request for the Six Sigma training described above!

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