THE PROMCALC AND GAIA DECISION-SUPPORT SYSTEM FOR MULTICRITERIA DECISION AID

PROMCALC & GAIA is the last development of the interactive decision su pport system based on the PROMETHEE and GAIA methodology. In the first section, the fundamental characteristics of multicriteria problems ar e recalled and requisites are formulated for an appropriate multicrite ria decision aid methodology. Based on these requisites, the PROMETHEE methods are then introduced, including newer developments such as PRO METHEE V (multicriteria optimization under constraints) and the GAIA v isual modelling method. The actual implementation of the proposed meth odology in the PROMCALC & GAIA software is then detailed and a numeric al example is developed to illustrate the possibilities of the system.