JUST ENOUGH PROTOTYPING
The aim of prototyping in the early stages of innovation is to simulate hypothesis and to put together “just enough” prototypes.
These prototypes have bare minimum detailing - just enough for users to give feedback on issues which are fundamental to usage and experience. The WIP nature of these prototypes are important so that users feel encouraged to contribute to a concept which is in the process of being built.
The emphasis on economy of effort in detailing of these prototypes is a mix of judgement and insight so that the correct level of fidelity can be aimed for.