Modifications to the site can then be made based on the data gathered. McCormack and Jones provide a useful heuristic both for designing and for evaluating an instructional Web site. Concentrate on the content. Design should not interfere with the content. A good design is a simple one.
Legibility is key.
Make sure your content can be read and understood. View your site using different browsers. Visitors should always know the context in which they are currently operating. Help users to know where they are, where they have been, and what they have accomplished. Consistency means predictability.