DINAS: a computer-assisted analysis system for multiobjective transshipment problems with facility location

Scope and Purpose--- The classical interactive procedures for multiple criteria decision analysis assume the so-called rational behavior of decision makers: they know the decision problem, and they are consistent and coherent in the decision process. However, as has been stressed by many researchers and practitioners, decision makers usually learn the decision problem during the interactive session with the decision support system, and there are numerous examples in which people systematically violate the consistency and coherence of their preferences. Therefore, the so-called aspiration-based interactive decision support schemes seem to be much more interesting for practical implementations. This interactive process explicitly depends on the aspiration levels stated and modified by the decision maker, and thereby makes operational the concept of the adaptive dependence of the decision process on learning and context. The paper presents an implementation ofan aspiration-based interactive procedure to solve various multiobjective transshipment problems with facility location. Abstract-DINAS is an interactive system to aid solving various multiobje~tive transshipment problems with facility focation using IBM-PC XT:AT or compatibles. DINAS utilizes the so-called aspiration-based (or reference point) approach to interactive handling of multiple objectives. In this approach the decision maker forms his/her requirements in terms of aspiration and reservation levels, i.e. specifies acceptabl