Supporting System of Decision Making for Agricultural Machinery Renewal by Using AHP

Abstract

We proposed the supporting system of decision making for agricultural machinery renewal by using AHP (Analytic Hierarchy Process) to select a best substitutional plan in the renewal case through examination about renewal condition, number of substitutional plan, and evaluation item. As a result, it was clarified that the number of all substitutional plan in the renwal case, and the ordinary AHP model and the cost/benfit analysis AHP model were able to be evaluate substitutional plan by using comparative evaluation items in disuse and addendum of agricultural machinery. Furthermore difference between ordinary AHP model and cost/benefit analysis AHP model were discussed, and the reason of difference selecting order of substitutional plan according to these two models was clarified.