The Electre Methodology

  • Martin Rogers
  • Michael Bruen
  • Lucien-Yves Maystre


In July 1966, Bernard Roy presented a paper in Rome in which he used his formal training in Mathematics to develop a practical decision-making system, now known as ELECTRE. It involves a systematic analysis of the relationship between all possible pairings of the different options, based on each option’s scores on a set of common criteria of evaluation. The result is a measure of the degree to which each option outranks all others. The methodology entails the construction of an outranking relation, the generation of concordance and discordance indices (including the notion of relative importance of each criterion) and an analysis of the results obtained from an overall evaluation of all the outranking relationships derived.


Concordance Index Ranking Procedure Preference Threshold Distillation Procedure Outrank Relation 
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Copyright information

© Springer Science+Business Media New York 2000

Authors and Affiliations

  • Martin Rogers
  • Michael Bruen
  • Lucien-Yves Maystre

There are no affiliations available

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