There are a few rules of thumb for good user interface design. The application should always keep users informed of what is going on. The application should use concepts, words and phrases that are familiar to the user. Give the user control; users often click links and initiate functions by mistake. Certain terms and phrases should be consistent across the entire website or application in every situation. When designing an application it is important to try to eliminate error prone situations and conditions. Also use validation and confirmation before allowing the user to proceed. Finally, be clear and concise – eliminate unnecessary information on the screen and in dialogs. Extra information will confuse the user and take away from areas of importance.