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Re: [Cloud Browser] Terminology section update/ Extended pics for fat-, thin- and zero-client terms

From: Yosuke Funahashi <yosuke@w3.org>
Date: Wed, 16 Mar 2016 21:48:42 +0900
To: Alexandra.Mikityuk@telekom.de, paul_higgs@hotmail.com
Cc: john.foliot@deque.com, public-web-and-tv@w3.org
Message-ID: <56E9562A.5060309@w3.org>
Hi Alexandra, Hi Paul

[The co-chair hat off]

Where is the dom tree of your Web application to achieve UI might be the key 
point to describe and/or depict terms and architecture models.

Yosuke

On 3/16/16 2:15 AM, Alexandra.Mikityuk@telekom.de wrote:
> Deal Paul,
>
> Thank you for your comments.
>
> I like your idea about data driven and application centric models. As I do not
> want to extend the terminology section, I have put your explanations into the
> /Evolution of the TV UI/ section. You can find it here [1].
>
> The updated pictures you can find in [2], [3] and [4]. I have put my comments in
> your email below.
>
> [1]
> https://www.w3.org/2011/webtv/wiki/Main_Page/Cloud_Browser_TF/Architecture#Evolution_of_the_TV_UI
>
> [2] https://www.w3.org/2011/webtv/wiki/File:Fat-client-01.png
>
> [3] https://www.w3.org/2011/webtv/wiki/File:Thin-client-01.png
>
> [4] https://www.w3.org/2011/webtv/wiki/File:Zero-client-01.png
>
> Mit freundlichen Grüßen / Viele Grüße / Best Regards
> Alexandra Mikityuk
>
> *DEUTSCHE TELEKOM AG*
> T-Labs (Research & Innovation)
> Alexandra Mikityuk
> Winterfeldtstr. 21, 10781 Berlin
> +4930835358151 (Tel.)
>
> +4930835358408 (Fax)
>
> E-Mail: alexandra.mikityuk@telekom.de
>
> www.telekom.com <http://www.telekom.com/>
>
> *Erleben, was verbindet.***
>
>
> Die gesetzlichen Pflichtangaben finden Sie unter: www.telekom.com/pflichtangaben
> <http://www.telekom.com/pflichtangaben>
>
> *Grosse Veränderungen fangen klein an **–**Ressourcen schonen und nicht jede
> E-Mail drucken.*
>
> *From:*Paul Higgs [mailto:paul_higgs@hotmail.com]
> *Sent:* Dienstag, 15. März 2016 16:28
> *To:* Mikityuk, Alexandra; john.foliot@deque.com; public-web-and-tv@w3.org
> *Subject:* RE: [Cloud Browser] Terminology section update/ Extended pics for
> fat-, thin- and zero-client terms
>
> Hi Alexandra
>
> These Fat, Thin and Zero definitions are a good high level start, but here are
> some points that you may want to try to incorporate.
>
> ·The Fat model is typically "data driven" in that data is supplied to some
> generally static code on the STB.
>
> ·The Thin model is "application centric" with data being incorporated into the
> application in the server (when the application is prepared) or in the STB. In
> this model, it is likely that many different applications comprise the user
> experience.
>
> ·The Thin model is also likely to make use of service side/cloud processing of
> logic or data set analysis.
>
> oPerhaps the Thin-client.jpg should at least show an "App" within the "Browser"
>
> èSure, I have added an Application Block for LiveTV, VOD, EPG, etc services.
>
> oUsing the colour coding from Fat-client.jpg, the "Browser" box in
> Thin-client.jpg should be coloured Blue especially for the STB scenario as there
> are some tight integrations there.
>
> èThank you for your comment, you are right. I have looked into this and decided
> to rebuild the pictures without any separation into which parts are supplied by
> which vendor. I think it makes the whole thing more complex and is not that
> important at that point
>
> oGiven that some of the application logic runs in the cloud/server in the
> thin-client model, some "off-STB" processing should also be depicted.
>
> èI have extended the picture with the Application Server.
>
> ·Given that the definition of the Zero Client states that "Rendering and
> execution of the UI resides in the cloud", the image needs to show a
> presentation/interaction layer above the "Driver Layer" "Operating System" and
> "Secured Link" boxes, since that is what this effort is attempting to harmonize.
> Perhaps this presentation/interaction layer is the "Cloud Browser/Media Player"
>
> èI have extended the picture with the Media Player block and the Cloud browser
> RTE block.
>
> Hope, its getting better now.
>
> Paul
>
> *From:*Alexandra.Mikityuk@telekom.de <mailto:Alexandra.Mikityuk@telekom.de>
> [mailto:Alexandra.Mikityuk@telekom.de]
> *Sent:* Tuesday, March 15, 2016 10:18 AM
> *To:* john.foliot@deque.com <mailto:john.foliot@deque.com>;
> public-web-and-tv@w3.org <mailto:public-web-and-tv@w3.org>
> *Subject:* [Cloud Browser] Terminology section update/ Extended pics for fat-,
> thin- and zero-client terms
>
> Dear John, dear all,
>
> first of all thank you for the job done. Great!
>
> In the meanwhile, I have extended the table you have provided. You can file the
> updated version here [1].
>
> @all: please, take a look at the terminology section, whether it makes sense for
> you or not. Your comments are very very welcome.
>
> For better understanding, I have also provided small explanation pictures for
> the three different client concepts. You can find them in the table or separate
> for the fat client [2], thin client [3] and zero client [4] accordingly.
>
> [1]
> https://www.w3.org/2011/webtv/wiki/Main_Page/Cloud_Browser_TF/Architecture#Terminology
>
> [2] https://www.w3.org/2011/webtv/wiki/File:Fat-client.png
>
> [3] https://www.w3.org/2011/webtv/wiki/File:Thin-client.png
>
> [4] https://www.w3.org/2011/webtv/wiki/File:Zero-client.png
>
> Mit freundlichen Grüßen / Viele Grüße / Best Regards
> Alexandra Mikityuk
>
> *DEUTSCHE TELEKOM AG*
> T-Labs (Research & Innovation)
> Alexandra Mikityuk
> Winterfeldtstr. 21, 10781 Berlin
> +4930835358151 (Tel.)
>
> +4930835358408 (Fax)
>
> E-Mail: alexandra.mikityuk@telekom.de <mailto:alexandra.mikityuk@telekom.de>
>
> www.telekom.com <http://www.telekom.com/>
>
> *Erleben, was verbindet.***
>
>
> Die gesetzlichen Pflichtangaben finden Sie unter: www.telekom.com/pflichtangaben
> <http://www.telekom.com/pflichtangaben>
>
> *Grosse Veränderungen fangen klein an **–**Ressourcen schonen und nicht jede
> E-Mail drucken.*
>
> *From:*John Foliot [mailto:john.foliot@deque.com]
> *Sent:* Mittwoch, 2. März 2016 17:23
> *To:* public-web-and-tv@w3.org <mailto:public-web-and-tv@w3.org>
> *Subject:* [Cloud Browser] My To-Do's
>
> Hi all,
>
> As discussed on today’s call, I’ve made some changes to the wiki:
>
> Moved Terminology into a table to accommodate alternative names/terms for
> concepts being discussed:
> https://www.w3.org/2011/webtv/wiki/Main_Page/Cloud_Browser_TF/Architecture#Terminology
>
> Added a new section to Use Cases for accessibility, and provided some
> backgrounder links there:
> https://www.w3.org/2011/webtv/wiki/Main_Page/Cloud_Browser_TF/UseCases#accessibility
>
> Linked the Architecture page to the main Cloud Browser page (because it wasn’t
> there before):
> https://www.w3.org/2011/webtv/wiki/Main_Page/Cloud_Browser_TF#Resources
>
> I also mentioned Shadow DOM on the call today, and more details about that can
> be found at:
> https://www.w3.org/TR/shadow-dom/
>
> I’m not sure at this point whether this is relevant or not, but as explained,
> this concept was worked out to address accessibility requirements for the
> <canvas> element in HTML5, which essentially allowed the browser to ‘paint’
> pixels to the screen (and animate them, both via JavaScript), but lacked any
> kind of scaffolding or framework that the Accessibility APIs could interact
> with. Shadow DOM addressed that problem, and is in production today. I’ve also
> added a link from Steve Faulkner that provides a primer on the accessibility
> tree requirements, as well as a link to the Core Accessibility API mappings –
> hope this helps.
>
> Cheers!
>
> JF
>
> ​--
>
> John Foliot
>
> Principal Accessibility Strategist
>
> Austin, TX
>
> Deque Systems Inc.
> 2121 Cooperative Way, Suite 210,
> Herndon, VA 20171-5344
>
> Office: 703-225-0380
>
> john.foliot@deque.com <mailto:john.foliot@deque.com>
>
> /Advancing the mission of digital accessibility and inclusion///
>

-- 
Yosuke Funahashi
Web and TV IG co-chair, Entertainment vertical champion,
HTML Media Extensions WG team contact at W3C
Project Associate Professor at Keio University
Received on Wednesday, 16 March 2016 12:48:54 UTC

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