A CASE approach to visual presentation designs

This paper focuses on two perspectives. First, there are many multimedia presentation systems that do not provide dynamic presentations. In order to improve the drawback, we allow dynamic presentations in our multimedia presentation system. We introduce the concept of data flow and control flow diagram for multimedia presentations have been broadly used in the structured analysis/design of software systems in recent years. Graphical control flow permits the stepwise refinement of the software specifications toward a detailed design and implementation. We introduce some additional graphical components in our multimedia DFD/CFD. It also allows the presentation to change itself. Thus, this dynamic multimedia presentation can let users (audiences) to learn and act according to their individual background. So, a presentation designer may analyze and design a presentation in a systematic way. In order to let our multimedia presentation system also deal with the problem of synchronization, our design tool also uses timed Petri Net