2010 年 18 巻 1 号 p. 96-103
An evaluation method that yielded a quantitative index of usability was demonstrated in the previous paper, but if the discovery that the level of usability is low is made at a stage when the design work has been finished, it is difficult at that point to implement a fundamental solution. This led to the idea that if usability could be evaluated in the planning stage, that is, in the first stage of