In the generally accepted approach to User Centered Design (UCD), the designer/investigator researches the needs of the target population, analyzes and transforms the raw data, and then synthesizes a solution ultimately reviewed by users who determine its fitness. Reducing the "gap" between the analysis and synthesis steps is key to improving the outcome of design activities . In Lewis Carroll's Through the Looking Glass Alice faces a puzzling and paradoxical approach to serving cake . A process I call Presumptive Design turns the traditional practice of UCD upside down in a similarly paradoxical way. The designer, with minimum input…
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