Bad designs – Elevator controls and labels on the bottom row all look the same, so it is easy to push a label by mistake instead of a control button –
{"Image DocumentName": "Bad designsElevator controls and labels on the bottom row all look the same, so it is easy to push a label by mistake instead of a control button.", "Image ImageDescription": "People do not make same mistake for the labels and buttons on the top row. Why not? From:", "Image XResolution": "37", "Image YResolution": "37", "Image ResolutionUnit": "Pixels/Centimeter", "Image Software": "SlidePlayer", "Image YCbCrPositioning": "Centered"}