It is also clear that the user should have an idea of media type and length of segment before clicking. One of the great frustrations in many titles is not being able to interrupt a long or tedious clip. Giving the visitor information on local art initiatives makes him or her feel involved so that interactivity with the program is spontaneous and curiosity driven. If this is too complicated logistically, then pencils and notepads would work. Part of the reason that these interactives work well is the way they are developed.
Prototypes go straight out onto the gallery floor to see how the public reacts.
This focus on usability in real situations means that the interface and its contents are continually being refined and rebuilt. We are beginning to see how different types of multimedia demand different creative approaches and implementation techniques. The range of tools open to designers is expanding rapidly. This extension of graphical user interfaces allows the user to focus on the objects as well as the principles of the object. Object Oriented User Interface enables users to interact with the various objects via direct manipulation, for example drag and drop, encrusted pop up menus.