[CJ01] Analysis and Design of Multimedia Scenarios with Navigation Diagrams and Navigation Constraints

Rapport Scientifique : Date de dépot: 2001/01/01, (Tech. Rep.: CEDRIC-01-199)

Auteurs: X. Castellani , H. Jiang

motcle:

Résumé: Petri nets are often used for designing multimedia scenarios. They are graphical, unambiguous, they allow representation of temporal concepts, and they can be validated. But end-users and designers of multimedia applications generally consider that Petri nets are complex to design. That is why we propose to analyze multimedia scenarios by creating navigation diagrams that represent the possible activations between multimedia objects for interactivity with end-users, and by specifying navigation constraints relative to the activations between multimedia objects. Navigation constraints are: constraints that represent end-users requirements, constraints resulting from the types of multimedia objects, temporal constraints, hardware constraints, and constraints resulting from the distribution of multimedia objects. The ordinary Petri net that represent the possible activations between multimedia objects of a multimedia scenario is created starting from the navigation diagram and the navigation constraints of the scenario. To create the Petri net of a multimedia scenario, we first decompose the navigation diagram of the scenario into independent components that do not share navigation links. Second, we create Petri nets of these components starting from the navigation diagrams of the components and internal component navigation constraints between multimedia objects of each component. Third, we create the entire Petri net of the scenario by merging Petri nets of its components and by taking into account multiple component navigation constraints relative to activations from, or of, multimedia objects that belong to different components.

BibTeX

@techreport {
	CJ01,
	title	=	"{Analysis and Design of Multimedia Scenarios with Navigation Diagrams and Navigation Constraints}",
	author	=	"X. Castellani and H. Jiang",
	number	=	"{CEDRIC-01-199}",
	institution	=	"{CEDRIC laboratory, CNAM-Paris, France}",
	date	=	{01-01-2001},
}