In this paper we present a general framework for document production that covers generic document model needs and adaptation needs. We define a multimedia document model called Madeus that describes multimedia scenarios. We show how this model is used for the generation of adaptable presentations. This presentation process is based on XSLT transformation techniques and constraint technologies for document formatting.

Publishers are automating the publishing streets to facilitate Printing and Publishing on Demand (PPoD). Besides the traditional hardcopy publications, a wide variety of products are added to their product line, such as Web-sites, Portfolio, leaflets, e-books, DVD, video, audio, etc. To achieve this, content should be reusable for publication on different media and platforms. Authoring content digitally already has become an integrated part of writing and a number of authoring environments are available to support the author in this process. However, to enable reusability of content in the context of a publishing street, content should be created in a medium neutral fashion. The eXtensible Markup Language (XML) allows for the separation of content and presentation, but also influences the authoring process radically. This research discusses two process models for structured content

musical structures. Simple formal models of hierachical musical structures will be proposed for this purpose. Those models use constraints to distinguish between consistent and inconsistent musical structures. Consequently, the computed values have to satisfy these constraints.

We propose in this paper a formal methodology that makes it possible to check whether a multimedia presentation could behave consistently when it is processed in a resource-limited environment. The approach uses the TSPN model to specify the resource constraints of the environment as well as the time and the synchronization requirements of the presentation. A graph is then built from this specification to check over its consistency. Hence it becomes possible to manage more efficiently the resource availability, and to adapt the content of the presentation so that the latter can be performed consistently under the given environment constraints.