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Distinguishing patterns and principles.


Using chi-square test on the results we found that for five of the ten tests the pattern statement was significantly chosen at the .05 level. Specifically, the patterns named were found to be more general than the accompanied principles. For the set without a pattern statement, it was expected that the statement ``Not able to distinguish'' would be the most frequent chosen, but instead the subject's choices were evenly distributed among the statements, from which one can make a similar conclusion. Four sets showed no preference for a pattern over a principle or showed a tendency toward an alternative (principle) statement. This result suggests that there is a need to go back to revise the pattern and/or the pattern statement of the affected patterns. These patterns included ``universal commands'', ``meaningful sequence'', ``accommodating dialog'', and ``recognizable objects''. It is worth noting that three of these, ``universal commands'', ``meaningful sequence'', and ``accommodating dialog'' all belong to the same group of patterns, specifically the patterns addressing the interaction across the interface.

Michael Spring
Mon Nov 27 18:39:52 EST 1995