An Operational Method for User Model Building of Solver by Systems Approach

Abstract

This paper investigates a model building problem of a system development methodology for problem solving based on systems theory. The methodology can be considered a general one in the sense that in principle it can address any kind of problems and that it has handled EUD type problems successfully.

The paper first explains the methodology and its problem classification scheme for its application in order to clarify the objective and background of this paper. The methodology requires a problem to be formalized as a model called a user model. According to the classification, one class of problems has an operational procedure to derive a user model for a given problem. However, the other class does not have an operational way to derive a user model. The paper introduces two concepts, goal order and completeness order for the target class and presents an operational method of user model building for it. Finally, the paper demonstrates how the method can be applied using four examples that represent the entire subclasses of the target class.