Activity Analysis Support System by Causal Relation Check Between Sub-activities

Abstract

When we encounter problems while performing specific activities, we need to identify the cause of the problem to fix it. An activity is composed of several small activities (sub-activities) and the cause might lie in either one of them. We therefore need to analyze the components of the activity to identify the cause. However, since valid sub-activities are not defined, it is difficult to perform a sufficient analysis of the activity. The objective of this research is to propose a method for analyzing an activity and identifying the problematic sub-activity. To attain this goal, valid sub-activities should be defined. This research proposes an activity model that represents the relations between an activity and its sub-activities. In addition, it constructs an activity analysis system with functions to provide hints for deriving sub-activities and verify the validity of the derived sub-activities.