Towards a fully MPEG-21 compliant adaptation engine: Complementary description tools and architectural models

Abstract

This paper develops a number of aspects of metadata-driven adaptation within the MPEG-21 framework that we consider are not clearly covered in the standard. Specifically, the paper introduces three complementary description tools that we have made use of and that we consider would fill certain gaps in the standard. Besides, this paper offers a group of architectural design patterns along with a pragmatic group of considerations that we have gathered during the development of our MPEG-21 compliant adaptation engine. © 2010 Springer-Verlag Berlin Heidelberg.