P and R measures

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P and R measures are the statistics used to evaluate the efficiency and effectiveness of business processes, particularly automated business processes.

The P measures are the process measures – these statistics that record the number of times things occur. Examples include:

  • the number of times an error loop is used
  • the number of times an approval loop is used
  • the average time to complete a particular task in the process

and show how efficient the process is.

The R measures are the results measures – these statistics record the 'outcomes' of the process. Examples include:

  • the number of occasions when the process completed correctly
  • the number of times rejections occurred
  • the number of times approval was not given

and show how effective the process is.