@InCollection{Vetro2006, author = {Vetro, Anthony and Timmerer, Christian and Devillers, Sylvain}, booktitle = {The MPEG-21 Book}, publisher = {John Wiley and Sons Ltd}, title = {Digital Item Adaptation - Tools for Universal Multimedia Access}, year = {2006}, address = {USA}, editor = {Van de Walle, Rik and Burnett, Ian and Pereira, Fernando and Koenen, Rob}, month = may, pages = {243-280}, abstract = {Access devices of all shapes and forms that can connect to different networks and be used for a myriad of applications are becoming an integral part of our everyday lives. For better or worse, these devices keep us connect at all times to our families, friends, and the office. They allow us to share our experiences and emotions, conduct business, or just say hello. With multimedia, the form of communication is much more powerful. However, we face this serious problem of heterogeneity in our terminals, in our networks and in the people that ultimately consume and interact with the information being presented to them. This chapter describes work developed within the MPEG standardization committee to help alleviate some of the burdens confronting us in connecting a wide range of multimedia content with different terminals, networks and users. Specifically, Part 7 of MPEG-21, Digital Item Adaptation (DIA) [MP21-7], is covered in this chapter.}, issn = {0-4700-1011-8}, language = {EN} }