Temporal and interactive relations in a multimedia database system

In this paper, we will present an approach for temporal and interactive relation composition of medium. The approach is based on time-interval and dependency temporal relations. We consider the seven relations of Alien (equals, meets, finishes, starts, before, overlaps, during) with the following features : Firstly; the temporal relations are designed to specify relations between multimedia objects of both determined and undetermined duration. Secondly, the temporal relations describe both existing arrangement of medium, and dependency relations between medium. Finally, a powerful temporal Petri net automatic is considered to model the temporal and iteractive relations.