A Gini-Type Index for Aging/Rejuvenating Objects

  title={A Gini-Type Index for Aging/Rejuvenating Objects},
  author={M. Kaminskiy and V. Krivtsov},
  • M. Kaminskiy, V. Krivtsov
  • Published 2010
  • Mathematics
  • This paper introduces a simple index that helps to assess the degree of aging or rejuvenation of repairable systems and non-repairable systems (components). The index ranges from − 1 to 1. It is negative for the class of decreasing failure rate distributions and point processes with decreasing ROCOF and is positive for the increasing failure rate distributions and point processes with increasing ROCOF. The introduced index is distribution free. 
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