Interface design plays a vital role in the production of multimedia displays. To a large degree, the plan and layout of multimedia screens determines how visitors perceive the key ideas in the display as well as how to travel from one idea to the next. At its best, effective interface design will interest, engage and thrill a visitor. Effective design also integrates each multimedia element text, graphics, animation, video into a seamless whole where the information is clearly presented, where visitors have a chance to perform interesting activities, and where the visitors understand how to navigate through the interactive at a glance. At its worst, poor interface design will confuse and bore a visitor. Poor design will clutter a screen with too many options or offer too few choices so the presentation becomes a linear story. Poor design can often cause a visitor to turn away, move on to something else, wasting the time and money and resources spent on developing the display. Developing effective, understandable interfaces involves coordinating the work of curators, graphic designers, interpretive editors, and multimedia producers. Its a recipe which includes basic design principles as well as intuition and creativity. In this paper, we will explore six key steps to designing effective interfaces.