▪Users who read in a loud production hall need a larger font size and more line space than users who are sitting in a quiet office. ▪Users who read while sitting in a moving car, bus, train, plane, ship, or other vehicle need a larger font size and more line space than users on solid ground. ▪Users who read in sunlight need pages that don’t produce a glare. ▪Users who read in rooms where lighting conditions are poor need strong contrasts between paper and letters, and between different colors. ▪Users who have to carry a printed manual with them may need a document with a small page size that fits in their pockets or in a special compartment attached to the product. For example, the manual of a car should fit into the car’s glove compartment. ▪Users who view an electronic document on a mobile device need a layout that takes up little screen real estate. |