This paper introduces the notion that fixation and commitment while designing can be measured by studying the protocol of the design session. It is hypothesized that the dynamic entropy of the linkograph of the protocol provides the basis for such a measurement. The hypothesis is empirically tested using a design protocol and the results demonstrate that the dynamic entropy of the design protocol's linkograph may form the basis of the measurement of fixation and commitment.
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John S. Gero (2011) studied this question.
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