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

Hi Jan,

Yes, you are jumping ahead:-) I see your concern, but I did not think of such details at all.

I have just focused on use cases which provide benefit to the ecosystem and consumers. This would be what the IG should do, I think.

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: Thursday, June 09, 2011 4:18 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,
> 
> I may be jumping ahead. The term Web API may mean a local API or a remote
> API to an application running on the TV. I have no problem with the discovery
> mechanism. That is fairly straight forward. My concern is with the service
> itself and broadcast of the functionality behind a service. Using webSocket
> does not a match to UPnP service template. To support the services one would
> have to use XML HTTP Request from a client perspective but that is not stated.
> So when we state webSocket then there is work to be done to "standardize"
> how new services can be defined. If the application is from the same
> distributor the services do not need to be specified but if the services
> are shared by multiple remote applications then it becomes an issue that
> was the reason for me to raise the concern.
> 
> Maybe a statement on discovery of service itself and supported "actions"
> and "events" if I steal terms from UPnP. We may want to define a new mechanism
> for service definition and supported functionality.
> 
> Regards,
> JanL
> 
> -----Original Message-----
> From: Igarashi, Tatsuya [mailto:Tatsuya.Igarashi@jp.sony.com]
> Sent: den 9 juni 2011 04:17
> 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,
> 
> 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 09:21:39 UTC