Page 73 - THE DUTCH TALKING TOUCH SCREEN QUESTIONNAIRE
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Development of the Dutch Talking Touch Screen Questionnaire 5.5.1.4 Font: The font should be as large as possible for readers who have visual problems. 5.5.2 Scales 5.5.2.1 Show only relevant items: Do not add words or metaphors (smileys, thermometer, thumbs up) to the scales. 5.5.2.2 Discrete scales: The numeric rating scale should contain absolute figures as opposed to an ongoing scale. 5.5.2.3 Use of color: Coloring numbers (from green for non or not severe to red for severe) would make it easier to find the right answer. 5.5.3 Illustrations and photographs 5.5.3.1 Pictures and icons: Use pictures and recognizable icons to enhance comprehensibility. 5.5.3.2 Concrete: Illustrations should be as concrete as possible. 5.5.3.3 Show only relevant attributes: Do not show irrelevant attributes in foreground or background. The background of the photographs should be white. 5.5.3.4 Consistent: All illustrations should have the same look. They should all show the same person. 5.5.3.5 Photographs better than illustrations: If possible, use photographs instead of illustrations. 5.5.4 Structure and lay-out 5.5.4.1 Minimize number of functions: Minimize the number of functions and buttons. 71 3
