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Sequential Approach

The sequential approach makes the assumption that the designer is certain in making the series of choices which are the design. It starts in the present and moves directly towards the future through a single scenario of assumptions. It uses abductive logic. While the designer may be aware that each of the assumptions has alternatives, these are not seriously considered, either singly or in combination with others. The decision to move forward toward the future design is based principally on the preferences and experience of the designer, possibly influenced by the client(s) desires.
The sequential approach is frequently used when the design process is the work of a committee. Frequently the committee would discuss one issue -- one assumption regarding the scenario toward which the future design is being directed – and make a decision before moving to the next issue. Eventually, a design can be achieved.

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