This hybrid interface is a combination of hardware keys and resistive touch screen, the existing housing of the remote control has already predefined key positions. Colored areas and explicit icons make the keyboard clear and easy to understand. Another important aspect of the design is the user guidance: on every key press the system communicates to the user with a message or instructions on the screen, which contains a short text and the corresponding icons. An interactive prototype on tablet simulates the functionality giving through user tests valuable input for optimizing user experience and icons.
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