Chapter 5 162 suggests that the way by which people categorize concepts externally, reflects their internal mental representation of these concepts [96]. Card sorting tasks can be ‘open’ or ‘closed’. To determine the mental map of the patient group as well as the therapist group, both types of card sorting were performed in two consecutive rounds. Instructions for the card sorting tasks were based on those used in the case studies by Hudson [97] and Cassidy, Antani [98]. All activities were recorded audiovisual. Content was based on the outcomes of the interviews. Because patients and therapists would use the future system differently, two separate but overlapping sets of cards were used. The first round was an open card sort for which participants were instructed to group the cards according to their content and provide a label or ‘category name’ to each group of cards. This process was then repeated until no new groups were formed. The second round a closed card sorting task was performed. Participants were instructed to sort the cards according to different degrees of relevance. They were asked to sort the cards into the three following categories: critical information, appropriate additional information / clarifying information, and unnecessary information. Initial results from the card sorts were processed and analyzed with the Best Merge Method (BMM) using Optimal Sort. (http://www.optimalworkshop.com/optimalsort.htm). BMM is derived from cluster analysis and is widely used in the UX-industry to see the patterns of users’ card sorting [94]. Results of BMM are typically represented in dendograms. The dendogram for the patient group, respectively the therapist group were then converted to a mental map. 5. Results The results of the study are presented following the planes of the EMP model. 5.1 Strategy and Scope (I) 5.1.1 User needs Results of the interviews made it clear that needs of the patient group and therapist group converge to a substantial degree, but that both groups also had several needs that were specific for that group. As the main goal of the project is to ultimately develop one single e-coaching system, one overarching set of user needs was formed. The compiled list of needs deemed most important by both user groups is presented in Table 1. Specific needs per group are discussed below.
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