A Design Specification is a series of statements which describe the possibilities and restrictions of the product.

The Design Specification is therefore a very important document. It often acts a ‘contract’ in industry, between the client and designer or producer. So if the final product does not fit the negotiated specification, payment for the designs / product can be with-held.

The Specification usually includes details about the

• appearance
• size and weight
• safety
• use and performance
• maintenance
• manufacturing cost
• environmental requirements
• life expectancy

of the product, and is usually written in point form.