Specifications

The different types of specification

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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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