HDi is a combination of ECMAScript (JavaScript) with XML modelled on HTML (div elements etc.). You cannot claim it HDi is any more designed from the "ground up" than BD-J.
Both use bespoke technology (either Java or JS) which have been fashioned with appropriate helper functionality to be fit for requirements.
As for BD-J, I suggest you look it up. You will see that it is an implementation of an ETSI defined J2ME profile called GEM (Globally Executable Multimedia Home Platform) which is designed for broadcast multimedia applications. It's not something that the BDA just knocked up in their garage.
“An engineer explained to us that hundreds of ear impressions were gathered in the name of research, and while each one obviously boasted its own unique shape and size, one single characteristic remained uniform across the board: the entrance into the ear canal is not a perfect circle, it's an oval.”
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@Dave, piffle.
HDi is a combination of ECMAScript (JavaScript) with XML modelled on HTML (div elements etc.). You cannot claim it HDi is any more designed from the "ground up" than BD-J.
Both use bespoke technology (either Java or JS) which have been fashioned with appropriate helper functionality to be fit for requirements.
As for BD-J, I suggest you look it up. You will see that it is an implementation of an ETSI defined J2ME profile called GEM (Globally Executable Multimedia Home Platform) which is designed for broadcast multimedia applications. It's not something that the BDA just knocked up in their garage.