2002 年 67 巻 556 号 p. 77-82
The purpose of this study is to grasp the direction of cause and effect in the hierachical structure model of environmental evaluation and to propose how to get causality model based on not only hypothesis but also exploratory modeling. The result are as followings : 1) In terms of the direction of cause and effect, this result shows the validation of the hierachical structure model. 2) The technique of exploratory modeling for causality is proposed, using Grapical Modeling for independence graph, Grapical Modeling for chain independence graph, and path analysis by Structural Equation Modeling.