Integrated design structure system for modular design in products development

To make the product design plan has an explicit direction is a crucial point in the process of product innovative development. This study applies contradiction matrix method from theory of inventive problem solving (TRIZ) to find out appropriate solution for design process. Furthermore, this study constructs design structure matrix (DSM) and expresses the relations between components by applying matrix partition and rearrangement. Through interpretive structural model (ISM), it transforms the plotted diagram of components interaction and draws the hierarchical interaction graph. By this research, a systematic approach has been made to integrate the TRIZ, DSM and ISM for product development. It gains a better modular grouping result and shows the result by graphical method mode. In addition, modular design concepts construct common parts for creating product varieties. An implementation of using motor treadmill can create product varieties and help to cut down product development pace effectively.