Usability test: Screen size - myloginistaken/sonytech GitHub Wiki

Test ID: 2

Related requirement:

The user interface must be made comfortable to use for a 5,5'' touch screen.

Expected:

Every user should be able to use all the system features (according to their privileges) with quite a small display, which means that a lot of information will be shown in small portions. Navigation must be fast, very simple and easy to learn. Buttons shouldn't be too small, otherwise there will be a problem to push them.

Possible failures:

In a hurry user tries to enter some data about the concrete bill, but there is a row of small buttons that doesn't even fit the screen and has it's own scroll. While scrolling to find the needed button user accidently pushes some wrong buttons, which means he should go back in the menu to try again. It takes time and when the workload is big, it might be a problem

Possible fixes:

Designers must provide a useful interface for 5.5'' touch screen, considering every small detail.