Eighty/20 Development Phase

The reason we try to create a working model of the system as early as possible is that sometimes it is very difficult for users to comprehend the scope of the new system until they start working with it. This means they are unable to understand some of their options or anticipate some of the potential problems until they can actually see and touch it.

Either way, like the assessment and the design phases, the development/prototype phase should be accomplished using the Eighty/20 process with the emphasis on getting the fundamental functionality right before worrying about the rest.

The Testing Phase

The development/prototype phase is designed to produce a preliminary, working model of the new system using a set of test data.

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