Rapid Prototyping
http://www.usabilitynet.org/tools/rapid.htm

UsabilityNet

Abstract:

In rapid prototyping interactive prototypes are developed which can be quickly replaced or changed in line with design feedback. This feedback may be derived from colleagues or users as they work with the prototype to accomplish set tasks. This method is concerned with developing different proposed concepts through software or hardware prototypes, and evaluating them. In general the process is termed ‘rapid’ prototyping. The development of a simulation or prototype of the future system can be very helpful, allowing users to visualise the system and provide feedback on it. Thus it can be used to clarify user requirements options. Later on in the lifecycle, it can also be used to specify details of the user interface to be included in the future system.