Dedicated Authoring Systems are designed for a single use and generally for single streams. Designing this type of authoring system is simple, but if it should be capable of combining even two object streams, it becomes complex. The authoring is performed on objects captured by the local video camera and image scanner or an objects stored in some form of multimedia object library. in the case of dedicated authoring systems, users need not to be experts in multimedia or a professional artist. But the dedicated systems should be designed in such a way that it has to provide user interfaces that are extremely intuitive and follow real-wold metaphors. A structured design approach will be useful in isolating the visual and procedural design components.