2 Stage of design process:
Select a method to suit the stage of the design process you are at.
The key reference here is the UK Design Council’s ‘double diamond’ design process model (2005) which maps the divergent and convergent aspects of the design process in four stages: discover, define, develop and deliver. Discover typically refers to the explore-and-understand stage of design; define to problem focus and definition; develop to the design-and-create stage; and deliver to final specification and production.