Re: Bootstrapping the Web of Things Community Group

Wise words

-Philipp

On 1/23/2014 11:02 AM, Nick Allott wrote:
>
> Just a word of caution: most real world IOT deployments we deal with 
> don’t even use IP.
>
> Look at weightless, or the innumerable RF 868/463 deployments in 
> existence. There are hard physics reasons why this is the case.
>
> Within the subset of IOT devices that use IP (TCP or UDP) – CoAP is 
> one of several alternatives
>
> IMHO a W3C WoT initiative should be inclusive, and implement the 
> appropriate functional abstractions to help web developers navigate 
> the multiplicity of implementations already in existence.
>
> I think there is merit in looking at 
> http://dev.w3.org/geo/api/spec-source.html as prior art in this space. 
> It is:
>
> -Functional developer level abstraction
>
> -Lends itself to many physical implementations
>
> -Is in reality: web friendly access to a “sensor”
>
> -Encapsulates the security privacy issue – albeit not adequately 
> addressed at present
>
> Just an opinion
>
> Nick
>
> *From:*Xiang Su [mailto:xiang.su@ee.oulu.fi <mailto:xiang.su@ee.oulu.fi>]
> *Sent:* 22 January 2014 12:07
> *To:* Markus.Isomaki@nokia.com <mailto:Markus.Isomaki@nokia.com>; 
> dsr@w3.org <mailto:dsr@w3.org>; public-web-of-things@w3.org 
> <mailto:public-web-of-things@w3.org>
> *Subject:* Re: Bootstrapping the Web of Things Community Group
>
> Hi,
>
> I agree with Markus that Coap is clearly cornerstone for WoT. This is 
> already standardized by IETF, we should always try to use ready 
> standardized work  when possible in development of WoT apps.
>
> What more we could do in this group? The general version of "Web of 
> things" is to reuse/adapt web technologies for building application 
> and services for "things". While underlying communication issues are 
> being solved, it's important to think about how to realize full 
> potential of Web technologies. integrating and interoperating huge 
> amounts of information provided by things is important.
>
> It's interesting to study best ways to adapt Web architecture 
> principles, protocols, identifications, meta formats, etc for WoT. OGC 
> SensorThings API is an important effort, and new W3C recommendation 
> JSON-LD (http://www.w3.org/TR/2014/REC-json-ld-20140116/) is also an 
> interesting format for WoT.
>
> Another thing is semantics, how to enable sensors/actuators as data 
> sources of linked data is a challenge. Can ready W3C languages, 
> including OWL ontologies, SPARQL, RIF or SWRL reasoning languages be 
> used in WoT straightforwardly? We need to think how to take benefits 
> from these.
>
> Moreover, it important to enjoy the benefit of Web technologies and 
> semantics, without breaking the constraints on resource usage. In our 
> group, we also study resource consumptions, e.g. usage of processor, 
> memory, bandwidth, and energy in WoT applications.
>
> br,
> -Xiang
>
> On 20.1.2014 15:39, Markus.Isomaki@nokia.com 
> <mailto:Markus.Isomaki@nokia.com> wrote:
>
>     Hi Dave,
>
>     One very “Web of Things” oriented effort, that I have not seen
>     mentioned on this list before, is the standardization of the
>     Constrained Application Protocol (CoAP) in the IETF, see
>     http://datatracker.ietf.org/wg/core/charter/and
>     http://datatracker.ietf.org/doc/draft-ietf-core-coap/.
>
>     CoAP is an application protocol that supports the RESTful CRUD
>     methods similar to HTTP (in practice GET, PUT, DELETE and POST),
>     but in a more lightweight manner. For instance, it runs over UDP
>     (and DTLS for security), and is binary encoded. In addition to the
>     baseline protocol, some of the related infrastructure, such as
>     resource directories, mirror proxies etc. are being standardized.
>     The idea is that CoAP is so compact, that it fits nicely on top of
>     IP even on the most constrained radio links, such as Zigbee or
>     Bluetooth Low Energy. Otherwise all the normal Web design
>     principles apply.
>
>     I don’t know how far the Community Group effort will go, but it
>     would be certainly interesting to get CoAP JS API standardized, so
>     that it could be supported in browsers or web apps, for instance.
>
>     You can find the contact details of the active CoAP people from
>     the CoRE WG pages, including chairs and draft authors. Carsten
>     Bormann, Cullen Jennings (WG chairs) and Zach Shelby (base
>     protocol main author) good candidates, for instance.
>
>     There is also IP for Smart Objects (IPSO) Alliance,
>     http://www.ipso-alliance.org/, an industry group dedicated to the
>     promotion of IP/Internet and Web technologies for “smart objects”.
>     Geoff Mulligan is the chair.
>
>     Regards,
>
>     Markus
>
>     *From:*ext Dave Raggett [mailto:dsr@w3.org]
>     *Sent:* 17 January, 2014 18:54
>     *To:* public-web-of-things@w3.org <mailto:public-web-of-things@w3.org>
>     *Subject:* Bootstrapping the Web of Things Community Group
>
>     The group has been very quiet until now, and I would like to get
>     things moving, especially, as we want your help with the planning
>     the W3C Web of Things Workshop to be held this June somewhere in
>     Europe. The dates and location are still to be decided. Please let
>     us have your ideas!
>
>
>
>     The aim of the workshop will be to discuss opportunities for
>     standardization as a basis for interoperability and a thriving
>     ecosystem. To support that we will be looking for examples of use
>     cases, and analyses of requirements and architectures, as well as
>     implementation experiences. Please help us to frame the scope of
>     the workshop in more detail.
>
>     Which people/organizations should we invite to become part of the
>     workshop's program committee?
>
>     Send your comments to the Web of Things Community Group mailing list
>
>      * public-web-of-things@w3.org <mailto:public-web-of-things@w3.org>
>
>     Please note that note that everyone on the older list (public-wot)
>     have been moved over to the above list. Newcomers to the Web of
>     Things Community Group will be automatically subscribed to the
>     above mailing list.
>
>     Looking forward to working with you all.
>
>     -- Dave Raggett <dsr@w3.org> <mailto:dsr@w3.org>
>     http://www.w3.org/People/Raggett
>