The navigation from screen to screen must be mapped out. The linkage in this mapping should have a logical flow and should not have unjustified random jumps. The project team and the client should review, modify, and agree upon the logical design and reassess the feasibility of the multimedia project with respect to the desired goal. The logical design phase of multimedia focuses on integration of different media sources and components of the system. MDP places more emphasis on presentation rather than on data management.
Navigational design requires the mapping out pathways through the multimedia system.
Ease of navigation is critical to the success of the multimedia system. The third phase is physical design . The physical design focuses on the material aspects of the multimedia system. These measures can be used in the selection process of authoring or visual software packages and in estimating CD-ROM space. Digitized video clips and audio segments can consume vast amounts of space, so multiple CD-ROMs may be needed for complex and sophisticated multimedia systems.