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Use dice to show rating and location, which are widely liked by users (“It’s so cute!”)
Use the classical color and style of a hyperlink to suggest that the texts for phone number and address is tappable.
Use standard dial activity of Android and Google map Android AP
Evaluation
We briefed our users with a short description of the application and its purpose, and left it to them to figure out how to use the application. Our users started by looking at the “how to play” screen. After reading the instructions, our first user went to the preference-setting screen, and commented declaratively that that was for setting her (individual) preferences. We did point out that the preference-setting screen was intended for the whole group, but that point may still have been lost; another user (playing the game with the first) never saw the preference screen, and was not aware that there were other options for cuisine and location beyond the three that were presented in the betting screen. We realized that the main “how to play” screen did not indicate that the preference-setting screen was for the whole group; we could add that fact in the text on the “how to play” screen, and/or provide a screen similar to those for transitions between players indicating that this screen is for groups.
One player used the betting screen without reading the help and seemed to figure out how to use it without aid; another player did search for instructions, and we had to point out the help button. The help button is out of the way and not visually distinct; we could attempt to make the help button more noticeable.
It was not entirely clear to our users what to do at the end if they do like the restaurant that was chosen; one user wondered if there was some way to save that restaurant as a good choice, to enhance decision-making in the future.
Our users generally liked the concept of the application, but found a few minor usability problems and possible enhancements. One suggestion from a user is an auto-fill option for the betting screen, to not require each user to use all 100 chips in some way. On the other hand, users did comment on the usefulness of the built-in help functions.