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Testing and Evaluation

Testing and Evaluation. Testing the Design. During the development of a new product, designers are constantly testing and evaluating their ideas to identify and suggest areas for improvement and refinement. They use a variety of techniques and methods to achieve this. Toile and Toile again!!!.

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Testing and Evaluation

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  1. Testing and Evaluation

  2. Testing the Design. • During the development of a new product, designers are constantly testing and evaluating their ideas to identify and suggest areas for improvement and refinement. • They use a variety of techniques and methods to achieve this.

  3. Toile and Toile again!!! • Paper models • Patterns • Mock ups • Prototypes All are tested regularly against the requirements of the specification.

  4. Physical Tests Such tests evaluate Size Strength Weight Etc

  5. What Tests? • Ergonomics. • Dermatological. • Colour fast – wash and wear. • Strength and durability.

  6. What Tests? • Ergonomics • Dermatological. • Weathering. • Strength and durability of fabric and construction.

  7. Matter of Opinion Such tests question appropriateness of; Ease of use Ergonomics Colour Texture Etc

  8. What Tests? • Whether the colours and patterns are co-ordinated or contrasting. • Whether the three different fabrics compliment each other in texture and weight.

  9. What Tests? • Whether the use of the same colour in three different fabrics work together. • Whether the components of the outfit are varied in intensity of detail.

  10. Prototypes • Models, mock ups and prototypes are often made in different sizes and materials to the final product. • Sometimes only specific parts of a product are modelled in order to test out specific parts of a design. • ICT is often used a great deal in the collection, to analyse and present information.

  11. Setting the Standards. • Materials and products need to be trialled in order to see how they perform against set standards. • These tests are usually factual and numerical, for example; • The garment stretched no more than 2 mm. • The colour faded 2% after 10 washes.

  12. Results • The results are recorded and compared against the set standards. • It is then possible to assess how efficient the materials and products are. • Testing and evaluation are carried out at every stage of the design process.

  13. Samples • Samples of textile products are made up and trialled before batch production, testing; • Pattern cutting – shape and style. • Design features – pockets, collars, cuffs… • Sizing and grading for different proportions.

  14. In addition… • Decisions about materials components and colour ranges. • Product costing and alterations that can reduce cost. • Best construction methods and organisation. • Wearing, washing and ironing and ergonomics.

  15. ? • You have been asked to design a figure hugging evening dress. • You need in groups of five to consider the appropriateness of fabrics on both factual and opinion based matters.

  16. Fact ? • Washability. • Flammability. • Stain removal. • Stretch resistance. • Effects of bleach. • Effects of steam iron and dry heat.

  17. Fact ? • Is it breathable. • Does it have the right amount of give for movement. • How is the texture against the skin. • Are the colours and textures appropriate.

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