Re: [Iotsi] New IoT effort at schema.org

Tim Coote <tim@coote.org> Tue, 23 August 2016 08:58 UTC

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From: Tim Coote <tim@coote.org>
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Date: Tue, 23 Aug 2016 09:58:26 +0100
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To: David Janes <davidjanes@davidjanes.com>
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Cc: iotsi@iab.org, Ted Hardie <ted.ietf@gmail.com>, Internet Architecture Board <iab@iab.org>
Subject: Re: [Iotsi] New IoT effort at schema.org
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Hullo

Based on practical experience, one of the biggest challenges is to have a view of the overall system state. This is partly covered in the concepts of interim (interstitial?) states in this paper, but bugs and potential bugs in composed components need to be accounted for (I think). This degree of uncertainty can be modelled, but probably not in the hardware scope of Things themselves as they tend to be under-powered.*

However, there is a significant issue that the deployed Things do not necessarily tell (or know) the truth about what they are or their current state.

*Is there a taxonomy for the different types of ‘Thing’: I’ve previously distinguished between the real-world, the sensors/actuators that interact with the real world, the software representations of the sensors/actuators and compositions of such software representations (which must still support minimal behaviours such as re-initialise).

tc 
> On 22 Aug 2016, at 21:19, David Janes <davidjanes@davidjanes.com <mailto:davidjanes@davidjanes.com>> wrote:
> 
> Hi Ted, everyone,
> 
> Great idea.
> 
> I'd just like to strong suggest that IOTDB would get mentioned, which is built exactly upon the concepts being mentioning - i.e. core indivisible concepts "atoms" related to IoT (such as turning things on and off, setting the temperature, changing the color, "am I measuring", "am I sensing", etc), and building on top of schema.org <http://schema.org/>
> 
> Here's the position paper submitted to the IAB
> 
> https://www.iab.org/wp-content/IAB-uploads/2016/03/2016-02-IOTDB-Interoperability-Through-Semantic-Metastandards.pdf <https://www.iab.org/wp-content/IAB-uploads/2016/03/2016-02-IOTDB-Interoperability-Through-Semantic-Metastandards.pdf>
> 
> And here's the vocabularies  
> 
> https://iotdb.org/pub/iot-purpose.html <https://iotdb.org/pub/iot-purpose.html>
> https://iotdb.org/pub/iot-purpose.jsonld <https://iotdb.org/pub/iot-purpose.jsonld>
> https://github.com/dpjanes/iotdb-vocabulary/tree/master/src/iot-purpose/Purpose <https://github.com/dpjanes/iotdb-vocabulary/tree/master/src/iot-purpose/Purpose>
> 
> Regards, etc....
> David
> 
> On Mon, Aug 22, 2016 at 3:22 PM, Ted Hardie <ted.ietf@gmail.com <mailto:ted.ietf@gmail.com>> wrote:
> Howdy,
> 
> As you may remember from the IOTSI workshop, there was some discussion about setting up a "Rosetta stone" site for schemas and ontologies related to IoT devices and systems.  Some of the folks in that conversation have had some further discussion about the prospect with the folks at schema.org <http://schema.org/>;, which does a similar thing for web-based schemas.   That resulted in schema.org <http://schema.org/> folks volunteering to set up an "iot.schema.org <http://iot.schema.org/>";, which is meant to help both "things" and services interoperate on a semantic level, as a common look-up site for types, properties, and enumerated values for structured data found in IoT.
> 
> There is a short paper outlining the initial work here <https://docs.google.com/document/d/1mE2hN83lXzqXA-RQYMURJxIlEktcZkFB252BQCCnkKk/edit?pref=2&pli=1#> and a mailing list <https://groups.google.com/forum/#!forum/sdo-iot-sync>;.  
> 
> If you are interested, please do join the mailing list.  (Since some of the folks were not part of IOTSI or other IAB efforts, it might be good when you do to introduce yourself).
> 
> regards,
> 
> Ted
> 
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