Abstract
For the cooperative design activities by a design team, a designer needs design object information not only about geometrical data and these attributes but also the design rationale such as the reason of decision making to understand ideas of the design proposes by other designers. To cope with such situation, we focused on influential relations between parts of design object, and previously proposed description supporting method for influential relations between parts. In this paper, grouping method for mutually related multiple influential relations is proposed. Then method of grasping plural relations between parts which should be simultaneously taken into consideration by showing the group is proposed. Finally, case studies were done using the system. The results showed that the system has possibility to grasp and manage mutually related multiple influential relations between parts.
