Error Rate Prediction

Definition - What does Error Rate Prediction mean?

Error rate prediction is an evaluation of the probability of an error occurring during the completion of a task. Error rate prediction is used to reduce the likelihood of errors occurring in the future. There are five steps in the error rate prediction process:

  • Define the system failure to be examined
  • List and analyze the human error that could occur and their related recovery modes
  • Calculate the human error probabilities using a probably tree
  • Estimate the effect of human failure on the system failure event
  • Recommend changes to the system

Safeopedia explains Error Rate Prediction

Error prediction rate takes the following five types of human error into account:

  • Errors of selection - the employee uses wrong controls or issues incorrect commands
  • Errors of omission - the employee leaves out a step in the process
  • Error of sequence - the employee performs steps in the wrong order
  • Error of timing - the employee performs the task before or after the appropriate time
  • Error of quantity - the employee uses too little or too much of an ingredient in the process
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