Table 2: Questionnaire items used to measure first impressions and ask for qualitative feedback.

Items used to measuring first impressions (Likert scale, 1–5)Items used to ask for qualitative user feedback (Free text)

(i) I find the idea to be very good.(i) How can we make the service better for you? (Do you have suggestions for change? New functionality? Other issues?)
(ii) I would use such a service a lot.(ii) How would you like to use this service? (Case 1)
(iii) The service would suit well for [the case owner].(iii) How would you like to use this service? Where would you use it—and why? (Case 4)