Divergence Objectives Tools ●Formal ·Checklists Generate many concepts Brainstorming ·Design Catalogues ·Morphological -Avoid details ●Functional Analysis Decomposition Raise issues that require ·Sketching ·Physical Process better specification ●Synthesis Diagrams Wishful Thinking ·Analogies -Suppress judgement ·Mind Mapping ·Iteration Shanghai Jiao Tong University 6
Shanghai Jiao Tong University 6 Divergence Objectives Tools – Generate many concepts – Avoid details – Raise issues that require better specification – Suppress judgement Formal Brainstorming Morphological Analysis Sketching Synthesis Wishful Thinking Mind Mapping Checklists Design Catalogues Functional Decomposition Physical Process Diagrams Analogies Iteration
Checklists Purpose To list all possible factors pertinent to major design activities To prevent inadvertent omission of any critical factor -To highlight critical areas for review and action To make evident a design problem or solution for use in other areas of activity Shanghai Jiao Tong University 7
Shanghai Jiao Tong University 7 Checklists n Purpose n To list all possible factors pertinent to major design activities n To prevent inadvertent omission of any critical factor n To highlight critical areas for review and action n To make evident a design problem or solution for use in other areas of activity
Conceptual Design Abstracting to identify the essential problem Establishing function structures ■ Searching for solution principles to fulfill the sub-functions Combining solution principles to fulfill the overall function Firming up into concept variants Evaluation concept variants against technical and economic criteria Shanghai Jiao Tong University 8
Shanghai Jiao Tong University 8 Conceptual Design n Abstracting to identify the essential problem n Establishing function structures n Searching for solution principles to fulfill the sub-functions n Combining solution principles to fulfill the overall function n Firming up into concept variants n Evaluation concept variants against technical and economic criteria
Abstracting Abstracting means to ignore what is particular and incidental and emphasize what is general and essential Shanghai Jiao Tong University 9
Shanghai Jiao Tong University 9 Abstracting n Abstracting means to ignore what is particular and incidental and emphasize what is general and essential