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A web-based software for group decision with analytic hierarchy process.

Rafael Verão Françozo1, Luiz Sérgio Velasquez Urquiza Junior1, Elana Souza Carrapateira1

  • 1Federal Institute of Education Science and Technology of Mato Grosso do Sul, Brazil.

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Summary

The Analytic Hierarchy Process (AHP) method is simplified with AHP-WEB, requiring fewer comparisons and enabling group decision-making. This web-based tool enhances accessibility and consistency for complex decision problems.

Keywords:
AHP-WEBDecision support systemsOpen-source softwareSoftware for OR

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Area of Science:

  • Operations Research
  • Decision Science
  • Computer Science

Background:

  • The Analytic Hierarchy Process (AHP) is a widely used multi-criteria decision support method.
  • Traditional AHP requires a high number of pairwise comparisons ((n²-n)/2), posing challenges for consistency with numerous criteria or alternatives.
  • Existing AHP software often lacks group decision-making capabilities and platform independence.

Purpose of the Study:

  • To introduce a novel web-based software system for the Analytic Hierarchy Process (AHP).
  • To reduce the number of required comparisons in AHP from (n²-n)/2 to n-1.
  • To facilitate group decision-making within the AHP framework.

Main Methods:

  • Development of a web-based AHP software (AHP-WEB) accessible from any internet-connected device.
  • Implementation of a revised AHP methodology requiring only n-1 comparisons per cluster, ensuring judgment consistency.
  • Integration of individual priority aggregation using arithmetic and geometric means for group decision support.

Main Results:

  • The AHP-WEB system significantly reduces the number of comparisons needed, simplifying the decision-making process.
  • The software supports group decision-making by aggregating individual priorities.
  • The web-based platform enhances accessibility and has garnered over 100 users with numerous decision problems addressed.

Conclusions:

  • AHP-WEB effectively addresses the limitations of traditional AHP and its existing software implementations.
  • The system provides a more efficient, consistent, and accessible approach to multi-criteria decision support.
  • The developed tool facilitates collaborative decision-making for complex problems across various domains.