First attempts at a low-fidelity paper prototype helped Team kidPhone to work through some key features of the project such as transitioning between screens, keyboard functionality, and information placement.
A 3D prototype was created in order to test certain physical constraints placed on the system by the chosen demographic. Namely, the icons had to be large enough to accommodate a younger user and the complete product had to allow for easy use of functional buttons such as the camera zoom-in and zoom-out buttons.
Overall, the functionality tested well. For one group, the tagging function was of great interest to the participants so additional prototype screens were prepared.