1. Realizing the possibility of action - The possibility of an action, such as pressing a button, comes from acquiring knowledge that the buttons are actuated after they are pressed.

2. Device tags - They are the numbers on the button and on the side of the button, indicating the floor number.

3. Mapping - No

4. Feedback - The elevator will start going to your floor

5. Rating - bad design. Confusing button layout. This may lead to an error in pressing the desired button. The left buttons should be on the right and the right buttons on the left. The design is not suitable for the blind. Rated 1 out of 3.