Multi-criteria weighted order based maintenance decision making

Viswanath Dhanisetty, Wim Verhagen, Ricky Curran

Research output: Chapter in Book/Conference proceedings/Edited volumeConference contributionScientific

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Decision making in daily maintenance requires consideration of multiple factors. The importance of each of the factors fluctuates depending on the repair scenario and the needs of the maintainer. In order to include the prioritisation of multiple criteria, a weighted decision making model is developed. The model evaluates all repair options and rates them individually for three decision making factors: survivability, cost, and downtime. The factor ratings are aggregated using designated weights, resulting in a final score for each of the repair options. This type of decision making evaluation provides flexibility in considering repair options that may otherwise be deemed unfavourable because of one factor. Case study results show one of five considered options as the best, for three of the four weight sets. The resulting best option of the other weight set demonstrates that definition of best repair is dependent on the priority of decision factors.
Original languageEnglish
Title of host publicationProceedings of the 17th Australian International aerospace congress
Subtitle of host publication26-28 February 2017, Melbourne, Australia
Number of pages6
Publication statusPublished - 2017
Event17th Australian International aerospace congress: Innovation into Aerospace Future - Melbourne, Australia
Duration: 26 Feb 201728 Feb 2017
Conference number: 17


Conference17th Australian International aerospace congress
Abbreviated titleAIAC 17
City Melbourne
Internet address


  • decision making
  • decision factors
  • weighted order
  • multi-criteria
  • structures repairs
  • survivability
  • repair cost
  • repair downtime
  • aggregated


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