The users were enthusiastic about the usability test, which made for more relaxed and casual contacts. All senior
users had a family member present to accompany the test. Only three of the elderly participants took a little longer
than 30 minutes to complete the test. The researcher adopted a stance of not interrupting users, since it was clear that
they were engaged in the tasks and thus should not be de-motivated. All volunteers were instructed about
simultaneous verbalization, especially the elderly group, but most of this group preferred verbalizing subsequent to
the test.