What is 'process capability index' in SAP QM - Quality Management?

process capability index - Overview

• Component: QM

• Component Name: Quality Management

• Description: Statistic for the valuation of the capability of a process to produce consistent quality. If the tolerance range of a characteristic is limited on one or both sides, you can calculate and display the capability indices "cp" and "cpk" in the mean value and qualitative tracks of a control chart. "Cp" is a measure of the smallest possible fraction of nonconforming units in the process, which occurs if there is an optimal distribution of characteristic values centralized production. The statistic does not confirm whether this is the case. "Cpk" is a measure of the expected fraction of nonconforming units in the process. The larger the index, the smaller this fraction.

process capability index - Details

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  Key Concepts: 
  Process capability index (PCI) is a quality management tool used in SAP Quality Management (QM) to measure the capability of a process to meet customer requirements. It is calculated by dividing the process performance by the process specification. A PCI of 1.0 indicates that the process is meeting customer requirements, while a PCI of less than 1.0 indicates that the process is not meeting customer requirements. 
  
  How to use it: 
  The PCI can be used to identify areas of improvement in a process and to determine if corrective action needs to be taken. It can also be used to compare different processes and identify which processes are performing better than others. The PCI can be calculated manually or automatically using SAP QM. 
  
  Tips & Tricks: 
  When calculating the PCI, it is important to ensure that the data used is accurate and up-to-date. Additionally, it is important to consider other factors such as customer feedback and process efficiency when evaluating the PCI. 
  
  Related Information: 
  The PCI is closely related to other quality management tools such as Six Sigma and Total Quality Management (TQM). Additionally, it can be used in conjunction with other SAP QM tools such as inspection lots and quality notifications.