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Problem Definition: Specifications

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Problem Definition: Specifications

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    1. Problem Definition: Specifications Static/dynamic Design Innovation Drivers

    2. 17/1/04 Design in the Context of the Auto Industry 2 Problem Definition

    3. 17/1/04 Design in the Context of the Auto Industry 3 What Is a Specification A series of statements clearly numbered, of the characteristics such as quantity, shape, material, location performance, etc. of a structure, apparatus, machine, system or process, written in terms that can be measured. A means of communicating the needs and intentions of one party to another An interface between two stages of a project

    4. 17/1/04 Design in the Context of the Auto Industry 4 Product Design Specification Or PDS It defines the Elements Factors And boundaries of the object to be designed

    5. 17/1/04 Design in the Context of the Auto Industry 5 Pugh’s Plate

    6. 17/1/04 Design in the Context of the Auto Industry 6 The PDS Is A Dynamic Document

    7. 17/1/04 Design in the Context of the Auto Industry 7 Specification Formats Simple specification PD6112/BS7373 formal, should contain all the limits factors and boundaries As designers a simpler version helps keep all the most important factors in mind

    8. 17/1/04 Design in the Context of the Auto Industry 8 Simple Format

    9. 17/1/04 Design in the Context of the Auto Industry 9 Requirements Two types of requirements Constraints (demands), these are hard metrics and must be met e.g. this vehicle must have an overall length between 2.0 – 2.05 metres Criteria or wishes to be delivered as best you can e.g. this vehicle should be as cheap as possible

    10. 17/1/04 Design in the Context of the Auto Industry 10 Product Status ‘Static’ or ‘Dynamic’ ?

    11. 17/1/04 Design in the Context of the Auto Industry 11 Product Status:- ‘Static’ and ‘Dynamic’ Design Terms first used by Stuart Pugh/Bill Hollins Indicate how a product/design is evolving The concept can be used as a driver for product change and profit opportunity

    12. 17/1/04 Design in the Context of the Auto Industry 12 Factors That Indicate Static Design Limited design time Customers not willing to change Stable effective PDS Dedicated machinery Few large producers More process design than product design Using experience in design Using imitation in design Market infrastructure based on existing design

    13. 17/1/04 Design in the Context of the Auto Industry 13 More Factors That Indicate Static Design Using rationalisation or commonality of parts between several products in design Assembling components made by others Product available in its present form for a long time Insufficient design/finance resources/management commitment

    14. 17/1/04 Design in the Context of the Auto Industry 14 Factors That Make a Product Dynamic Adequate time allowed for design Customers willing to change Change in PDS Flexible machinery , subcontract manufacture Many small producers An increasing number of producers More emphasis on product design than process design

    15. 17/1/04 Design in the Context of the Auto Industry 15 More Factors That Make a Product Dynamic Wide effective market research (innovation seeking market pull) Technology advancement No market infrastructure Changing environment (legislation etc.) No conformance standards Open management design guidelines Companies seeking new concepts

    16. 17/1/04 Design in the Context of the Auto Industry 16 Product Design Innovation

    17. 17/1/04 Design in the Context of the Auto Industry 17 Innovation Routes New materials (composites) New processes (high current roll forming) New technologies (the transistor and PCB) New combinations ( MPV)

    18. 17/1/04 Design in the Context of the Auto Industry 18 Innovation and Product Status for Profit – The Kettle

    19. 17/1/04 Design in the Context of the Auto Industry 19

    20. 17/1/04 Design in the Context of the Auto Industry 20 Innovation and Design Innovation brings risk New technologies processes or materials

    21. 17/1/04 Design in the Context of the Auto Industry 21 TRIZ and Anschuller Further work on innovation will be covered in the lecture on creativity You may like to search the internet or library on the above topics

    22. 17/1/04 Design in the Context of the Auto Industry 22 Any Questions?

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