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Re: [HOME_NETWORK_TF] Comments on "Application Communication" requirement

From: Matt Hammond <matt.hammond@rd.bbc.co.uk>
Date: Sun, 28 Aug 2011 20:49:33 +0100
To: "Jean-Claude Dufourd" <jean-claude.dufourd@telecom-paristech.fr>, "public-web-and-tv@w3.org" <public-web-and-tv@w3.org>, "Bob Lund" <B.Lund@cablelabs.com>, "Giuseppe Pascale" <giuseppep@opera.com>
Message-ID: <op.v0xv0vr5mko9fo@r44116>
Definitely agree with Bob that this requirement should be expressed in  
terms of how there needs to be discovery in order to initiate  
communication.

Thinking about the use of the term 'services': should this be phrased in  
terms of 'applications' throughout, rather than 'services'? Communication  
with services is already covered by other requirements. This particular  
requirement originated from the "Local Link for Web Applications" use  
case[1]:

http://www.w3.org/2011/webtv/wiki/HNTF/Home_Network_TF_Requirements#U14:_Local_Link_of_Web_Applications

regards


Matt

On Tue, 23 Aug 2011 16:08:04 +0100, Giuseppe Pascale <giuseppep@opera.com>  
wrote:

> On Mon, 22 Aug 2011 18:13:38 +0200, Bob Lund <B.Lund@cablelabs.com>  
> wrote:
>
>> I agree but I think it should be stated in terms of access to services  
>> discovered on the home network:
>>
>> "Service communication: Conforming specifications should provide a  
>> means for a client to exchange messages directly via the home network  
>> with services discovered in the home network."
>>
> As discussed I changed this into
>
> "Service communication: Conforming specifications should provide a means  
> for an application to exchange messages directly via the home network  
> with services discovered in the home network."
>
> http://www.w3.org/2011/webtv/wiki/HNTF/Home_Network_TF_Requirements#Service_communication
>
> /g
>
>> Bob
>>
>>> -----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: Monday, August 22, 2011 9:05 AM
>>> To: public-web-and-tv@w3.org
>>> Subject: Re: [HOME_NETWORK_TF] Comments on "Application Communication"
>>> requirement
>>>
>>> I strongly support this clarification about direct communication.
>>> Best regards
>>> JC
>>>
>>> On 22/8/11 16:44 , Giuseppe Pascale wrote:
>>> > On Sun, 21 Aug 2011 20:20:43 +0200, Matt Hammond
>>> > <matt.hammond@rd.bbc.co.uk> wrote:
>>> >
>>> >> Hi all,
>>> >>
>>> >> Apologies for this being a little later than I originally intended:
>>> >> as I mentioned in last week's conf call, I have a comment regarding
>>> >> the "Application Communication" requirement.
>>> >>
>>> >> Would it be helpful to clarify that this requirement is specifically
>>> >> intended to enable direct communication between applications? This
>>> >> would be to distinguish it from an implementation that (for example)
>>> >> sent all communications through a cloud based relay or proxying
>>> service?
>>> >>
>>> >> For example: "Conforming specifications should provide a means for
>>> >> applications to exchange messages directly via the home network with
>>> >> other applications running on a different user agent in the home
>>> >> network."
>>> >>
>>> >
>>> > Hi Matt,
>>> > thanks for raising this in writing.
>>> > I agree that several (all?) of the use cases we have discussed  
>>> require
>>> > (preferably) a direct communication. I think this is pretty
>>> > uncontroversial and could add it right away to the requirement
>>> document.
>>> > Some of the use cases could actually be covered by an indirect
>>> > communication mechanism as well, so probably also that would be in
>>> > scope. On other end such a mechanism may either not need (additional)
>>> > standardization or fall back to the a different discussion about  
>>> which
>>> > services could be standardized.
>>> >
>>> > So in short I'm fine to re-word the requirement as you suggested if
>>> > nobody objects.
>>> >
>>> > /g
>>> >
>>> >> regards
>>> >>
>>> >>
>>> >>
>>> >> Matt
>>> >
>>> >
>>>
>>>
>>> --
>>> 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
>>>
>>
>>
>
>


-- 
| Matt Hammond
| Research Engineer, BBC R&D, Centre House, London
| http://www.bbc.co.uk/rd/
Received on Sunday, 28 August 2011 19:50:34 UTC

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