Abstract
Recently, in various fields, many design support systems by computers have been developed for improvement of design efficiency. In Service Engineering, the design support systems are also needed for service evaluation and service modeling. In the way of a existing study, there is Service Flow Simulation based on Scene Transition Net is a modeling tool to describe discrete/continuous hybrid systems. When a designer uses the existing simulation method, the designer needed decision design parameters. But the decision depended designer's intention. So it is difficult for the designer to decide adequate design parameters. In this paper, to decrease designers' trial and error in evaluation phases, the authors propose a design-value tuning system that searches for design solutions based on Goal Programming to the service modeled with the existing Service Flow Simulator, and test the system's utility in an example.