A set of precise limits for the complete range of performance requirements for the design of a product.
Small changes to the design of a product which seem trivial but the cumulative effect of these changes over a longer period of time can be very significant.
Where a completely new product is devised by going back to the roots of a problem and thinking about a solution in a different way.
Analysing a situation which would benefit from re-design, and working out a strategy for improving it.
An existing technology or solution to a problem in one field is used to provide a new idea for a solution in another.
The ability to analyse information in order to select an answer from alternatives.