caption: Key points Systems should provide on-line help. This should include help, I'm in trouble and help, I want information
exif: {"Image DocumentName": "Key pointsSystems should provide on-line help. This should include help, I\u2019m in trouble and help, I want information", "Image ImageDescription": "Error messages should be positive rather than negative. A range of different types of user documents should be provided. Ideally, a user interface should be evaluated against a usability specification. <SKIP>", "Image XResolution": "37", "Image YResolution": "37", "Image ResolutionUnit": "Pixels/Centimeter", "Image Software": "SlidePlayer", "Image YCbCrPositioning": "Centered"}