Bitesize has changed! We're updating subjects as fast as we can. Visit our new site to find Bitesize guides and clips - and tell us what you think!
Print

Design & Technology

Product analysis and evaluation

Page:

  1. 1
  2. 2
  3. 3
  4. 4
  1. Back
  2. Next

Computer-aided design

The term computer-aided (CAD) design includes all the computer applications and hardware devices that can be used to aid digital design. CAD speeds up the design process by making it quick and easy to test and modify ideas before production starts. This reduces mistakes and cuts costs. Uses of CAD in textiles design include:

  • Wire-frame modelling [wire-frame modelling: Using a grid of lines to represent the external surface of a 3D product on a computer screen. ], surface modelling [surface modelling: Adding colour, shading and texture to the visible surface of a 3D virtual product to make it look solid and realistic. ] or solid modelling [solid modelling: The use of digital drawings based on geometric shapes to represent solid objects, such as car components. ] can be used to texture map [texture map: A computer 'relief map' of a garment design, as if the fabric had been draped onto the design to show how the finished garment will look on screen. ] or simulate virtual products [virtual product: 3D version of the product shown on a computer screen. ] in 3D, from which clients can choose one to be sampled in fabric. This saves the time and cost of sampling a large selection of real products.
  • Graphics applications enable ease the production and storage of accurate working drawings [working drawing: An accurate line drawing to show the back and front views of a product, used on a manufacturing specification sheet. ] and lay plans [lay plan: The laying out of pattern pieces of a fabric to work out the quantity and cost of material required for a product. ].
  • Colourways [colourway: Combinations of colours used in a fabric design. ] can be accurately modelled at the design stage.
  • Material quantities and costs can be easily calculated.
  • Computer networks improve communication between designers, clients and manufacturers thus speeding up the design-feedback loop.

Page:

  1. 1
  2. 2
  3. 3
  4. 4
  1. Back
  2. Next

Back to Textiles index

BBC © 2014 The BBC is not responsible for the content of external sites. Read more.

This page is best viewed in an up-to-date web browser with style sheets (CSS) enabled. While you will be able to view the content of this page in your current browser, you will not be able to get the full visual experience. Please consider upgrading your browser software or enabling style sheets (CSS) if you are able to do so.