DOI – https://doi.org/10.46793/Vodoprivreda56.1-2.37S
Ključne reči – donošenje odluka; grupa; agregacija stavova; AHP
REZIME
U grupnim primenama poznatog višekriterijumskog metoda AHP koriste se razne agregacione (objedinjavajuće) šeme preko kojih se individualni sudovi članova grupe o značaju elemenata odlučivanja grupišu i zatim preko odabranog metoda prioritizacije generišu težine tih elemenata. Kada se metod koristi tako da se implicira odsustvo konsenzusa među članovima grupe, objedinjavanje pojedinačnih vrednovanja i odluka ima karakter nepristrasnosti i rezultat (grupna odluka) je u velikoj meri objektivan. Data su dva primera iz oblasti vodoprivrede i pokazano je da agregacije geometrijskim osrednjavanjem i putem primene grubih brojeva na svim pozicijama matrice poređenja (karakteristične za AHP), posle izvršene prioritizacije, daju težine koje se kod najviše rangiranih elemenata odlučivanja značajno razlikuju. To je posebno važno u problemima odlučivanja kada se vrši alokacija resursa (npr., količine vode korisnicima ili definisanje kapaciteta crpnih stanica u sistemima navodnjavanja). Grubi brojevi daju nižu težinu najviše rangiranom elementu odlučivanja, a često se povećavaju težine niže plasiranih elemenata – suprotno od vrednosti težina dobijenih putem geometrijskog osrednjavanja. Zaključci ukazuju na potrebu daljeg ispitivanja efekata mogućih objedinjavanja individualnih odluka u grupi.
Autor: Bojan Srđević
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