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How to Make a Decision: The Analytic Hierarchy Process

Author

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  • Thomas L. Saaty

    (322 Mervis Hall, University of Pittsburgh, Pittsburgh, Pennsylvania 15260)

Abstract

People make three general types of judgments to express importance, preference, or likelihood and use them to choose the best among alternatives in the presence of environmental, social, political, and other influences. They base these judgments on knowledge in memory or from analyzing benefits, costs, and risks. From past knowledge, we sometimes can develop standards of excellence and poorness and use them to rate the alternatives one at a time. This is useful in such repetitive situations as student admissions and salary raises that must conform with established norms. Without norms one compares alternatives instead of rating them. Comparisons must fall in an admissible range of consistency. The analytic hierarchy process (AHP) includes both the rating and comparison methods. Rationality requires developing a reliable hierarchic structure or feedback network that includes criteria of various types of influence, stakeholders, and decision alternatives to determine the best choice.

Suggested Citation

  • Thomas L. Saaty, 1994. "How to Make a Decision: The Analytic Hierarchy Process," Interfaces, INFORMS, vol. 24(6), pages 19-43, December.
    • Handle: RePEc:inm:orinte:v:24:y:1994:i:6:p:19-43
    DOI: 10.1287/inte.24.6.19
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