What is Cpk value in SAP QM - Quality Management?

SAP Term: Cpk value

• Component: QM

• Component Name: Quality Management

• Description: A measure of the expected fraction of nonconforming units in the process.

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• Key Concepts: 
  Cpk value is a statistical measure used in Quality Management (QM) in SAP. It is used to measure the capability of a process to produce parts within a specified tolerance range. It is calculated by dividing the difference between the process mean and the specification limit by three times the standard deviation of the process. 
  
  How to use it: 
  The Cpk value is used to determine if a process is capable of producing parts within the specified tolerance range. If the Cpk value is greater than 1, then the process is considered capable of producing parts within the specified tolerance range. If the Cpk value is less than 1, then the process is not considered capable of producing parts within the specified tolerance range. 
  
  Tips & Tricks: 
  When calculating Cpk values, it is important to ensure that all data points are included in the calculation. This will ensure that an accurate Cpk value is calculated. Additionally, it is important to ensure that all data points are within the specified tolerance range before calculating Cpk values. 
  
  Related Information: 
  Cpk values are closely related to other statistical measures such as Process Capability Index (PCI) and Process Performance Index (PPI). These measures are used to measure the capability of a process to produce parts within a specified tolerance range. Additionally, Cpk values can be used in conjunction with other statistical measures such as Six Sigma and Lean Manufacturing to improve process performance.