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Re: Is the conformance to the Web architecture principles what distinguishes the IoT and the WoT ?

From: Dominique Guinard <dom@evrythng.com>
Date: Mon, 26 Sep 2016 08:01:07 +0000
Message-ID: <CANBVkYsT=mPOr7jtcX_i1fKrFjUbyTGvMvVS8=3Vsn2dJykTiQ@mail.gmail.com>
To: Maxime Lefrançois <maxime.lefrancois.86@gmail.com>, public-wot-ig@w3.org
Hi Maxime,

Very interesting question. I think the issue is that there is the Web of
Things as defined around 2007 and then published in the the two papers you
are citing (I would also have a look at
http://www.vs.inf.ethz.ch/publ/bibtex.html?file=papers/dguinard_09_WOTMashups
which
was the first peer-reviewed one)
and then there is the W3C WoT definition.

This is actually a topic we discussed at the TPAC: there is a world outside
of W3C where the WoT as a concept has been used and implemented for the
past 10 years. So if you want the W3C WoT definition then Dave's email is
an interesting direction. What's to be noted btw is that the W3C WoT IG is
not completely diverging from the early work, but more building an
interoperability framework.

If however you want the practical definition then your two proposal are
perfectly reflecting the real-world. What I would do is mix them:

"The Web of Things is a refinement of the Internet of Things by integrating
smart things not only into the Internet (the network), but into the Web
(the application layer thus becoming conformant the Web Architecture
principles."

How does this sound?

Dom



On Sun, Sep 25, 2016 at 2:09 PM Maxime Lefrançois <
maxime.lefrancois.86@gmail.com> wrote:

> Dear all,
>
> After this exiting week at TPAC, I would like to kindly ask you for some
> piece of advice about how to define the exact difference between IoT and
> WoT for a paper I'm currently writing.
>
> My intuitive definition would be:
>  " the WoT starts when the IoT becomes fully conformant with the Web
> Architecture principles" ->
> https://www.w3.org/TR/2004/REC-webarch-20041215/
>
> Yet at TPAC, I heard various strange shortcut definitions such as:
>  - the WoT is putting REST architecture principles into the IoT,
>  - the WoT is when discovery and semantics is enabled into the IoT
> Then at the IRTF meeting this weekend, some discussions were mentioning
> the Web of Things in terms that would violate the Web architecture
> principles.
>
> I tried to find the clear agreed definition of the Web of Things and its
> source. So far, my colleague Andrei Ciortea (was at TPAC too) uses the
> following two references:
>
> In [1], Erik Wilde emphasizes the importance of the Web architecture
> principles, so I would love to consider that his definition be paraphrased
> as above: " the WoT starts when the IoT becomes fully conformant with the
> Web Architecture principles"
>
> In [2], Guinard, Trifa, and Wilde, describe the Web of Things as follows:
> > We position the Web of Things as a refinement of the Internet of Things
> by integrating smart things not only into the Internet (the network), but
> into the Web (the application layer).
> In this paper, the reference to the Web architecture principles
> disappears. Although this second definition implies that the Web
> architecture principles must be satisfied, I believe it generates confusion
> among participants in the WoT group.
>
> Thus, I would be glad to get your opinion on this point:
>
> To what extent would you agree that the strict definition for Web of
> Things may be stated as:  "the WoT starts when the IoT becomes fully
> conformant with the Web Architecture principles" - -
> https://www.w3.org/TR/2004/REC-webarch-20041215/  ?
>
> [1] Dominique Guinard, Vlad Trifa, and Erik Wilde. 2010. A resource
> oriented architecture for the Web of Things. In Internet of Things (IOT),
> 2010. IEEE, 1–8.
>
> [2] Erik Wilde. 2007. Putting things to REST. School of Information, UC
> Berkeley (2007).
>
> Kind regards,
> Maxime Lefrançois
>
-- 
--
Dominique Guinard, Ph.D. ////
co-founder & chief technology officer
+44 79 5153 2987 // w evrythng.com
t @domguinard // w guinard.org
b webofthings.org

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Received on Monday, 26 September 2016 08:01:49 UTC

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