The different types of specification

Design Specification

Created from the design brief after research has been carried out

Sets out the essential and desirable criteria for the design

It will normally:

  • include any key points from the brief
  • provide guidelines to help focus the design ideas
  • take the research into account
  • list all of the essential criteria that must be included in the designs
  • include desirable criteria that could go into the design
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Design Specification Continued

These factors need to be considered:

  • form- the shape of the product
  • function- what the product needs to do
  • user requirements- what the target market needs/ wants
  • performance requirements- the properties that the product needs to do its job
  • materials and componants- what the product would be made of
  • scale of product- how many will need to be produced
  • budget- the amound of money available for materials and production
  • sustainability- how the product's impact can be reduced
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Product Specification

Dawn up once a decision has been made about which proposals to develop further. Contains all the information needed to make a prototype

Needs to be clear and someone else should be able to follow it

Needs to be accurate as it's used to calcualte final costs

It contains:

  • a working drawing of the product... front and back views, black and white, measurement details, exploded drawings showing key details, seam details
  • a written description... a list of componants and fabrics, quantities
  • samples of... fabrics, colours, components
  • sizing details for all the elements of the design
  • appropriate user instructions and aftercare information
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Manufacturing Specification

Created after the prototype and includes any alterations

Provides material and equiptment lists

Identifies all of the tasks that need to be completed to create the product

Provides a detailed set of guidelines including written instructions, diagrams and flow charts, that would help the manufacture to create the product how the designer envisaged

It contains:

  • a list of materials, components, tools and equiptment
  • a plan of the work as a flow chart
  • set time lines and guides for each stage of manufacture
  • appropriate quality control checks
  • a list of possible problems and solutions
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Industry Specification

In industry, the product and manufacturing specifications incorporate a:

Fabric specification- type, weight, colourfastness, finishes, abrasion resistance, feel, texture

Garment specification- style, size, dimentions, colours, types of facts

Componant specification- fusings, interlinings, zips, fastenings

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