Web Interfaces Web interfaces are usually used in a very strict mode of operation - the user usually uses a single window, rather then multiple windows, with this window's contents changing based on context. Order the web interface in a clear hierarchical manner. Then, make sure the user easily notices where they are (e.g. by placing an appropriate "location bar" at the top of the window), and make it easy for the user to navigate to various parts of the interface. Make sure a web interface loads quickly. If a feature loads too slow - redesign it using more primitive methods (e.g. replace an applet with a simple HTML form).