Subjective responses constitute a signifi cant component in the evaluation of software and other products. There are a variety of techniques for obtaining responses from users relating to issues such as whether they found a product easy to use or whether they enjoyed using the product. However, a possible criticism of such approaches is that the evaluator is effectively putting words into the mouths of the respondents, i.e., by having predefined terms, the respondents might be unable to express precisely how they feel. Furthermore, it can be very useful to have an idea of how users might think about a given product, particularly during the initial phases of design. A technique for eliciting user’s concepts relating to a product, therefore, might provide some flexibility in defining rating terms and also provide an insight into how people think about the product. One such technique is the repertory grid.