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International Journal of Digital Multimedia Broadcasting
Volume 2009 (2009), Article ID 579569, 17 pages
Research Article

Interactive Digital Terrestrial Television: The Interoperability Challenge in Brazil

1Tmira Solutions, Camino Terminillo (Centro Empresas) KM 2, 16003 Cuenca, Spain
2Department of Information Engineering, University of Siena, Via Roma 56, 53100 Siena, Italy

Received 30 January 2009; Accepted 15 June 2009

Academic Editor: Robert Briskman

Copyright © 2009 Jordi Amatller Clarasó et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


This paper introduces different standards implemented in existing Digital Terrestrial Television Broadcasting systems to allow the fruition of interactive services and applications through digital Set Top Boxes. It focuses on the interoperability issue between the Brazilian and the European architectures. In fact, despite in Brazil the GEM specification has been designed to foster wide content compatibility across a range of interactive platforms, it has never come to a final implementation and deployment. As a result the interoperability issue has been deeply explored in the BEACON project and an innovative system architecture has been developed to deploy t-learning services across Europe and Brazil, providing integration of those systems that were not able to interoperate until nowadays. This work is an important step in the direction of standards' interoperability. As a result, MHP and Ginga NCL-Lua implementation appeared to be the very best choice to deliver interactive services in an interoperable mode between European and Brazilian digital television.