Abstract
The conjoint analysis are studied in the marketing sience mainly, which applied to analyzing the consumer's senses in the actual purchase action. In this paper, we deal with the conjoint analysis, and described the some problems to apply the infrastructure planning fields. The results are summarized as follows; (1) we showed that the conjoint analysis is effective method for the individual decision making model. (2) stepwise decision making was modeled based on the prominense hypothesis. (3) we presented the method for translating the qualitative data to the quantitive data using AHP method.
