RE: [HOME_NETWORK_TF] Some use cases and requirements for broadcast TV applications



> -----Original Message-----
> From: public-web-and-tv-request@w3.org [mailto:public-web-and-tv-
> request@w3.org] On Behalf Of Jean-Claude Dufourd
> Sent: Tuesday, April 12, 2011 6:12 AM
> To: public-web-and-tv@w3.org
> Subject: Re: [HOME_NETWORK_TF] Some use cases and requirements for
> broadcast TV applications
> 
> On 11/4/11 21:52 , Bob Lund wrote:
> > UC4 seems like a web server function: UI from server X moves from
> client A to client B. This could be done by a web server with HTML5
> within a home network or across the internet. Nothing new is required, I
> think. UC5 has the element of device A discovering a service on device B
> and device A creating UI presented on device B.
> >
> > Bob
> JCD: UC4 is about moving the interface (HTML page plus all its
> ressources) *plus* the current state of the interface, such as which
> choices are already made.
> So the question is, where does the state reside.
> 
> Option 1: You have an intelligent server on the Internet, and the web
> page on the terminal is progressively updated using AJAX. The state
> information is on the server, and the terminal is just a mirror of this
> information. It is feasible indeed to connect from another terminal,
> identify as the same user, and get the intelligent server to switch to
> using the new terminal for the already started session.
> 
> Option 2: The intelligence is in the web page (widget-style). The server
> is plain HTTP. The state information is in the page. The you have no way
> to transfer the state information. You can restart the interface
> elsewhere, but it starts "at the beginning".
> 
> 
> I claim that option 2 is useful and needed, for example to satisfy
> privacy concerns, hence my proposal for UC4.
> Best regards
> JC

I agree these are the options. I think option 1 can be implemented exclusively through JavaScript so would lend itself to deployment to any existing browser. For option 2, are you proposing a HN service on the target client that the source client invokes and transfers its UI state to? If so, I would agree this fits within the HNTF scope.

Regards,
Bob
> --
> 
> JC Dufourd
> Directeur d'Etudes/Professor
> Groupe Multimedia/Multimedia Group
> Traitement du Signal et Images/Signal and Image Processing Telecom
> ParisTech, 37-39 rue Dareau, 75014 Paris, France
> Tel: +33145817733 - Mob: +33677843843 - Fax: +33145817144
>

Received on Tuesday, 12 April 2011 14:51:53 UTC