The interface is the part of a tool or technology with which the user interacts. For a screwdriver, its the handle. For a bike, its the seat,handlebars, and pedals, and gear levers. For a Web site, its a crafted communication enviroment that houses the site's content. Tje navigation devices the user needs to get to the content. The design goal for an interface is to clarify the content offered by the site to " dish it out" effectivley.

If the site is designed as a tool, its to allow visitors to get the tech support information they seek or to buy tickets for something. The interface should be virtually transparent.

If the site is ntended to promote or sell a product or service the interface has a big role to play in making it easy for potetial buyers to get the information they need to make a decision. It also has to help motivate them to take action and it needs to povide a way for them to place orders either online or off.