RE: webtv-ISSUE-24 (igarashi): Local Link of web applications [HOME_NETWORK_TF]

Hi Jan,

Let me clarify your point "The usage of web socket would be between application from the same application "service provider". Is your concern about the cross-domain issue of WebSocket ? Or, is it the argument on what is Web API ?

About the question "How an application on TV exposes this interface", I assume the application on the remote smart phone obtained the URL for message exchange and invoke the WebSocket to "the URL for message exchange" to communicate the application on TV. I did not describe this detail in the following sentence of the use case description, but I will add some clarification in the implementation example description.

Via API, the User-Agent provides the discovered application list which contains the applications which are running on other user-agent, e.g. application id, the URL for message exchange, physical device name(for user selection).

Thank you.

-***---***---***---***---***---***---***---***---***--***---***---***-
Tatsuya Igarashi　(Tatsuya.Igarashi@jp.sony.com)
NS Development Dept. Technology Development Group 
Sony Corporation
(Voice) +81-3-5435-3252　(Fax) +81-3-5435-3274



> -----Original Message-----
> From: Jan Lindquist [mailto:jan.lindquist@ericsson.com]
> Sent: Wednesday, June 08, 2011 9:45 PM
> To: Igarashi, Tatsuya; Web and TV Interest Group WG
> Subject: RE: webtv-ISSUE-24 (igarashi): Local Link of web applications
> [HOME_NETWORK_TF]
> 
> Hi Igarashi,
> 
> Maybe what mislead me is the implementation example. The example only showed
> web socket. When it comes to implementation details there are two different
> approaches. In this context to define a Web API between these applications
> is not the same as using a web socket. The usage of web socket would be
> between application from the same application "service provider" while a
> Web API is a HTTP server with a HTTPrest interface. In this case the user
> agent in the smart phone does not need a local Api but simply interfaces
> directly to the TV. How an application on the TV exposes this interfaces
> to a remote smart phone is an interesting question.
> 
> If we add the note can we also update or add an implementation example?
> 
> Regards,
> JanL
> 
> -----Original Message-----
> From: Igarashi, Tatsuya [mailto:Tatsuya.Igarashi@jp.sony.com]
> Sent: den 8 juni 2011 07:38
> To: Jan Lindquist; Web and TV Interest Group WG
> Subject: RE: webtv-ISSUE-24 (igarashi): Local Link of web applications
> [HOME_NETWORK_TF]
> 
> Hi Jan,
> 
> I do not assume that the applications are provided by the same distributor
> or service provider. We do not need to explore how syntax and protocol using
> web socket are.  I assume that developers or forums will define it and may
> make it open to others. This is in the same manner that anyone may develop
> Web APIs.
> 
> I would like to add the following note if no comment.
> 
> "Description: "
> The applications (including Web Widget) on user devices know each other
> and can exchange messages for communications Note that the applications
> may not necessarily be provided by the same distributor or service provider.
> 
> Thank you.
> 
> -***---***---***---***---***---***---***---***---***--***---***---***-
> Tatsuya Igarashi　(Tatsuya.Igarashi@jp.sony.com) NS Development Dept.
> Technology Development Group Sony Corporation
> (Voice) +81-3-5435-3252　(Fax) +81-3-5435-3274
> 
> 
> 
> 
> > -----Original Message-----
> > From: Jan Lindquist [mailto:jan.lindquist@ericsson.com]
> > Sent: Tuesday, June 07, 2011 11:38 PM
> > To: Igarashi, Tatsuya; Web and TV Interest Group WG
> > Subject: RE: webtv-ISSUE-24 (igarashi): Local Link of web applications
> > [HOME_NETWORK_TF]
> >
> > Hello Igarashi,
> >
> > Very interesting use case. I just want to clarify the line regarding the
> > knowledge between the "applications". You have the following line under
> > "Description:"
> >
> > - The applications (including Web Widget) on user devices know each other
> > and can exchange messages for communications
> >
> > Does this assume that the application on the TV device (10foot UI) and
> the
> > smart phone (Touch UI) are from the distributor or developer. If they
> are
> > the same then we do not need to explore how the syntax and protocol using
> > web socket will look like but if they work across different applications
> > that adds an extra dimension.
> >
> > If I take the red button example. Both the application from the content
> > provider that initiates on the TV and the application running on the smart
> > phone are from the content provider.
> >
> > Regards,
> > JanL
> >
> >
> > -----Original Message-----
> > From: public-web-and-tv-request@w3.org
> > [mailto:public-web-and-tv-request@w3.org] On Behalf Of Igarashi,
> Tatsuya
> > Sent: den 7 juni 2011 12:11
> > To: Web and TV Interest Group WG
> > Subject: RE: webtv-ISSUE-24 (igarashi): Local Link of web applications
> > [HOME_NETWORK_TF]
> >
> > Hi all,
> >
> > Sorry for the bad link.
> >
> > Here is the correct link to the use case description.
> >
> http://www.w3.org/2011/webtv/wiki/HNTF/Home_Network_TF_Discussions/Loc
> > alLink#Use_Case:_Local_Link_of_Web_Applications
> >
> > Thank you.
> >
> >
> -***---***---***---***---***---***---***---***---***--***---***---***-
> > Tatsuya Igarashi　(Tatsuya.Igarashi@jp.sony.com) NS Development Dept.
> > Technology Development Group Sony Corporation
> > (Voice) +81-3-5435-3252　(Fax) +81-3-5435-3274
> >
> >
> >
> > > -----Original Message-----
> > > From: public-web-and-tv-request@w3.org
> > > [mailto:public-web-and-tv-request@w3.org] On Behalf Of Web and TV
> > Interest
> > > Group Issue Tracker
> > > Sent: Tuesday, June 07, 2011 7:05 PM
> > > To: public-web-and-tv@w3.org
> > > Subject: webtv-ISSUE-24 (igarashi): Local Link of web applications
> > > [HOME_NETWORK_TF]
> > >
> > >
> > > webtv-ISSUE-24 (igarashi): Local Link of web applications
> > > [HOME_NETWORK_TF]
> > >
> > > http://www.w3.org/2011/webtv/track/issues/24
> > >
> > > Raised by: Tatsuya Igarashi
> > > On product: HOME_NETWORK_TF
> > >
> > > This is a proposal about the use case "Local Link of web applications".
> > >
> > > See: http://www.w3.org/2011/webtv/track/issues/24
> > >
> > >
> > >
> >
>

Received on Thursday, 9 June 2011 02:17:41 UTC