Abstract
In complex decision making such as ill-structured decision making, one of the main problems is how to treat ambiguous aspects of the decision making. According to the complexity of the objective systems or processes, many types of evaluation attributes are necessary for the rational decision and the relationships among the attributes become complex ones. Especially some phenomena of hierarchical evaluation or switching of evaluation attributes are emerged in the decision processes. In such a situation, decision maker should investigate the properties of the evaluation attributes.
One of the main objectives of this paper is to clarify structural knowledge about evaluation attributes in order to make complex decision rationally and effectively. In this paper, first we present a framework in which we can investigate properties of evaluation attributes formally and refer to the situation of switching evaluation attributes in the decision processes. Next, we analyze relationships among evaluation attributes as dependency. Finally we refer to hierarchical evaluation structure of attributes based on the above framework.
