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Paper prototyping - what is it good for?: a comparison of paper- and computer-based low-fidelity prototyping

This study investigated the differences between computer-based and paper-based low-fidelity prototypes. It researched whether subjects confronted with these two kinds of prototypes differ in their willingness to criticize a system and to give suggestions for its improvement. The chosen approach was an empirical study including test sessions using both kinds of prototypes. Quantitative and qualitative methods were applied to measure and to explain possible differences.