Abstract
Influence analysis is to estimate change of society caused by Shakai-Gijutsu. In order to check that the social problem is to be settled by Shakai-Gijutsu, and not to miss unintended results and adverse effect, it is important to carry out influence analysis in the design step of Shakai-Gijutsu. In this study, a method of influence analysis using scenario, causal network and interview is proposed, and is applied to Real-time Diagnosis Navigation System. Consequently, we illustrate which objectives will be achieved and what kinds of adverse effect will be caused by Real-time Diagnosis Navigation System. Furthermore, some measures to avoid the adverse effect are proposed.