Re: [profile] Scope of the TV Profile document

On Wed, 04 Jan 2012 21:31:25 +0100, Mark Watson <>  

> HI Guiseppe,
> I have two comments on the draft.
> 1) Overall I think the background and motivation is good, however I  
> think we should try hard to make this as succinct a document as  
> possible: it should not be another 100s of pages like OIPF and should  
> not give the impression that it defines anything different from (a  
> subset of) the overall W3C web platform.

> It should really just be a list of references to other specifications  
> and perhaps some more detailed conformance requirements where these are  
> lacking in the reference specification. I don't think we need Sections  
> 3-6 as such. Especially an "Architecture" section will just encourage us  
> to write stuff which will leave people wondering whether they need to  
> understand this as something different from normal web architecture.
The idea of the architecture section is to give an overview of the current  
architecture and better explain where this document position itself.
Furthermore I think in our case the architecture is slightly different,  
since it includes, for examples, TV broadcast channels that may be  
something web people are not familiar with.
In other word, we should try to cover both the pure web deployments and  
hybrid deployments.

> 2) We have found it key to making our HTML5 applications work on  
> consumer electronics devices that we consider performance as well as  
> conformance. It may be that a given device supports a given feature but  
> it is just too slow to be useful. Performance requirements would need to  
> be defined in terms of specific performance tests/benchmarks and would  
> provide guidance to implementors as to where to focus optimization  
> efforts.

Completely agree, but I envision this as a second (set of) document.
First, I would like to write the functional architecture. Second step  
could be to deal with performances. W3C is probably not the right place to  
write a normative performances document, but what we could discuss is  
probably how to measure such performances (and which one are relevant for  
the industry) leaving to other groups to deal with a minimal performance  
requirements.  Given the limited bandwidth I would start with this once  
the profile document is at least half way through. Unless someone is  
willing to drive this second effort, in this case, we can discuss them in  


> ...Mark
> On Jan 4, 2012, at 8:07 AM, Giuseppe Pascale wrote:
>> *** NOTE: from now on, all mails related to the TV profile SHALL be  
>> tagged with [profile]  ***
>> Hi all,
>> I'm happy to see interest in working together on a TV profile document.
>> As mentioned by several people (me included), we need to agree on the  
>> scope of such document and the goals we want to achieve.
>> Based on the discussion on this list, I put together a first draft
>> Please take a look at the introduction section of this document and let  
>> me know what do you think. Feel free to point out typos and to suggest  
>> additions or changes to the text.
>> Once there is consensus on the goals, we are ready to move on to the  
>> next steps. Meanwhile I'll keep refining the document adding more text  
>> in the other sections so that we have starting point for further  
>> discussion
>> (if you have already suggestions or comments on the rest of the  
>> documents, feel free to send them to this list, but PLEASE start a NEW  
>> discussion thread)
>> One last point: many of you have mentioned that a dialogue with other  
>> organizations is needed. I agree.
>> I would suggest we wait to have a clear agreement on the goals and  
>> maybe a more detailed structure of the documents before starting to  
>> reach out to relevant groups. Let me know if you think we should reach  
>> out to this groups earlier (or later) instead.
>> Thanks,
>> /g
>> --
>> Giuseppe Pascale
>> TV & Connected Devices
>> Opera Software

Giuseppe Pascale
TV & Connected Devices
Opera Software

Received on Thursday, 5 January 2012 09:43:56 UTC