Abstract
This paper proposes a planning support method of design process within the early design stage, where the input and output of a task are not decided. A grouping from the viewpoint of product function and structure is proposed based on product information model. The proposed method support to plan a design process considering the following two viewpoints: (1) good task-grouping and (2) good order of task-processing. In order to construct good task-grouping, the viewpoint of product function and structure is considered. The good task-grouping involved has the intention to read and understand design plans from functional and structural viewpoints. A reducing method of the amount of influence between groups is proposed and whole-product design is recognized by undertaking independent design activities. Also, a method of rework-risk reduction is proposed by removing vain feed-back loop. We describe information processing to derive a design process and verify it by using LSI (Large scale integrated circuit). In conclusion, the proposed method can derive an effective design process in situations where there are no clear input-output relations among tasks.
