1. Design Specifications Higher product Design revision

2. Specifications • These are statements of characteristics a design must possess in order to meet the requirements of the design brief. • Sets out clear boundaries within which the designer must work. • However it can be too restrictive and may prevent imaginative ideas to happen.

3. Various Specifications • Marketing Specification (will it sell?) • Emphasises the requirements of the user, the purchaser and the producing company. • Technical Specification (can it be made?) • Translates some requirements in the marketing specification into precise descriptions, setting limits. Deals with more physical properties of the product • Performance Specification (will it work?) • Deals with desired outputs of a product of what function it must fulfil, ease of use from people, how well the product performs.. • Conformance Specification (is it safe and legal?) • Ensuring the product complies with legal and commercial requirements and that it is safe to use by the public. BSI (British standards industry), IPR (intellectual property rights) must be observed.

4. Aims of Specification • It to try and establish what things could cause a new product to fall. • Sets out criteria which are part of a key quality control document for the finished product. • It clearly sets out what the product must and should do.

5. Before writing... • It takes time and effort and involves research into the needs and requirements of users, buyers , retailers and manufacturers. • Useful to consider product requirements for each of these groups under the following headings: Performance Ease of use function Safety Materials Marketing Ergonomics Aesthetics Manufacture

6. You try..... Produce design specification • Leather and steel • Price £120 • Rubber stoppers on feet • Polypropylene injection moulded • $3 dollars • Available in many colours

7. Produce design specification • BASISK table lamp • Base weight: Cast ironBase plate: Clear lacquer, Birch plywoodDisc/ Tube: Steel, Nickel-platedShade: Glass • £7.99 • Light bulb sold seperate • KNAPPA TULPAN lamp • Base: Cast iron, PaintTube: Steel, GalvanisedShade: Polypropylene plastic, Polypropylene plasticShade holder: Polystyrene plastic • £17.99 • Bulb sold seperately