No abstract

Supplier selection is a complex task which assumes decision making in presence of many conflict ing criteria and various parameters. If there are more than one decision maker, the problem shifts into a group context and it requires proper approach in mediating the decision making process and use of supporting multi criteria methods and tools. This paper proposes group decision making approach for supplier selection based on analytic hierarchy process (AHP) that is combined with consensus convergence model, and two vot ing methods, non preferential approval voting and preferential Borda count. Proposed approach utilized strengths of these methods thus enabling their adaption to the specific decision problem of supplier selection. An example of selecting a supplier of irrigation equipment in the company engaged in projecting, installing and maintenance of irrigation systems is used to explain and demonstrate how proposed approach can be implemented. Furthermore, this approach is viable as sufficiently general in supporting different selection processes in a field of water planning, management, and development and it can be adapted and applied on various group decision making problems.

Izbor najpogodnijeg sistema za navodnjavanje u datim uslovima je kompleksan zadatak koji zavisi od brojnih faktora. U ovom radu je izvršen izbor najpogodnijeg sistema za navodnjavanje na parceli smeštenoj na području Vojvodine, primenom modela koji koristi analitički hijerarhijski proces (AHP). U procesu odlučivanja učestvovalo je više stručnjaka, a finalna grupna odluka dobijena je primenom konvergentnog modela konsenzusa. Vrednovanjem pet različitih sistema za navodnjavanje kišenjem, dobijena je konačna konsenzusna odluka da je u datim uslovima najpogodnije navodnjavati tifonom. Sledeće rangiran sistem za navodnjavanje je linear, zatim centar pivot, a poslednje rangirani su prenosna i samohodna kišna krila.