Home Environment Control System for the Disabled: User Interface Testing
Home environment control system was designed using a standard home automation network, a PC and an infrared transmitter. It makes home environment for the disabled more accessible. The design of user interface was tested which was implemented using objects scanning method on the dialog-based 3-level menu. The goal of the investigation was to evaluate optimal object activation time which is one of the most important criteria affecting the overall system effectiveness. The results show that tested users make less errors and do the task faster when activation time is 0.7 second. The evaluation was done repeatedly with modified user interface (timer value reset after each executed option). The results were got significantly better. Ill. 4, bibl. 3 (in English; abstracts in Lithuanian, English and Russian).
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