Ginga-J - An Open Java-Based Application Environment for Interactive Digital Television Services.

This paper aims to present a Ginga-J's reference implementation. Although based on a particular platform, the implementation not only works as a proof of concept, but also raised several issues and difficulties on the software architecture project that should be taken into account to ease extensibility and porting to other platforms. Ginga is the standard middleware for the Brazilian DTV System. Its imperative environment (Ginga-J) is based on new JavaDTV specification and mandatory for fixed terrestrial receptors.