上浒充通大粤 SHANGHAI JIAO TONG UNIVERSITY © What-not-how! At decomposition stage the goal is to describe the functional elements of the product (What) It should not provide or imply any specific technological working principle or particular physical solution (How) Useful techniques to start with decomposition >Create a function diagram of an existing product Create a function diagram based on an arbitrary product concept Already generated by the team Or based on a known subfunction technology Follow one of the flow(e.g.,material)and determine what operations are requiredWhat-not-how!  At decomposition stage the goal is to describe the functional elements of the product (What)  It should not provide or imply any specific technological working principle or particular physical solution (How) Useful techniques to start with decomposition  Create a function diagram of an existing product  Create a function diagram based on an arbitrary product concept • Already generated by the team • Or based on a known subfunction technology  Follow one of the flow (e.g., material) and determine what operations are required