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A design specification is a detailed document that sets out exactly what a product or a process should present.[1] For example, the design specification could include required dimensions, environmental factors, ergonomic factors, aesthetic factors, maintenance that will be needed, etc. It may also give specific examples of how the design should be executed, helping others work properly (a guideline for what the person should do).

Example of a design specification

An example design specification is shown below. Columns and information may be adjustable based on the output format (may be a physical product, or software, etc.)

Example design specification (with a product design focus)
Number Category Demand / want Weighting Requirement Success criteria Method of assessment Date modified
1 Aesthetics Demand 2 Product must be blue Product is blue Visual analysis 03-21
2 Cost Demand 1 Product costs less than £300 Product is less than £300 Component cost analysis 03-21
3 Function Want 3 Product is collapsible Product can reduce by at least 1/2 its size Prototype testing 05-21
4 ...

See also


  1. ^ Rodgers, Paul (2011). Product design. Alex Milton. London: Laurence King. ISBN 1-78067-085-0. OCLC 803965919.