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Re: Summary of HL7 RDF / W3C COI call: FHIR Ontology Requirements

From: Lloyd McKenzie <lloyd@lmckenzie.com>
Date: Fri, 6 Feb 2015 21:29:20 -0700
Message-ID: <CAJ860JLiNYeB8UNGNzW-urAFT135Fww=Ze7+KqYcCdFUgZ8s+Q@mail.gmail.com>
To: David Booth <david@dbooth.org>
Cc: Sajjad Hussain <hussain@cs.dal.ca>, w3c semweb HCLS <public-semweb-lifesci@w3.org>, "its@lists.hl7.org" <its@lists.hl7.org>
I expect we'll need to be able to handle both open-world and closed-world
versions of the ontology.  Closed-world is essential to validation.  If a
profile says something is 1..1 and the instance doesn't have it, then that
needs to be flagged as an error, which open-world wouldn't do.  On the
other hand, reasoners may well need to operate with some degree of
open-world.  The fact something isn't present in the EHR doesn't
necessarily mean it isn't true.  I'd be happy for us to include something
like this:

SHOULD: OWL ontology should allow expressions enforcing both closed world
and open-world reasoning against instances.


*Lloyd McKenzie*Consultant, Information Technology Services
Gevity Consulting Inc.

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On Fri, Feb 6, 2015 at 9:20 PM, David Booth <david@dbooth.org> wrote:

> Hi Sajjad,
>
> On 02/04/2015 07:12 AM, Sajjad Hussain wrote:
>
>> Hi All,
>>
>> Responding to Action # 2 carried during last call:
>>
>> http://www.w3.org/2015/02/03-hcls-minutes.html#action02
>> <http://www.w3.org/2015/02/03-hcls-minutes.html#action02>
>>
>> I would suggest the following wording for FHIR Ontology Requirement # 11
>> (http://wiki.hl7.org/index.php?title=FHIR_Ontology_
>> Requirements#11._Enable_Inference
>> <http://wiki.hl7.org/index.php?title=FHIR_Ontology_Requirements>)
>>
>> 11. Enable Inference
>> (MUST) The FHIR ontology must enable OWL/RDFS inference with
>> monotonicity and open world assumption [1]
>> [1] http://www.cs.man.ac.uk/~drummond/presentations/OWA.pdf
>> <http://www.cs.man.ac.uk/%7Edrummond/presentations/OWA.pdf>
>>
>
> I would expect the closed world assumption to be used quite a lot to  in
> data validation and perhaps other ways, so I would be uncomfortable having
> that as a MUST requirement.
>
> David Booth
>
>  Best regards,
>> Sajjad
>>
>> ***************************************************
>>
>> On 2/3/15 10:45 PM, David Booth wrote:
>>
>>> On today's call we almost finished working out our FHIR ontology
>>> requirements.  Only two points remain to be resolved:
>>> http://wiki.hl7.org/index.php?title=FHIR_Ontology_Requirements
>>>
>>>   - Sajjad suggested that the wording of requirement #11 be changed to
>>> be clearer, and agreed to suggest new wording.  Current wording:
>>> "Enable Inference: The FHIR ontology must enable OWL/RDFS inference."
>>>
>>>  - Paul Knapp noted that requirement #16 is related to requirement #2,
>>> and suggested that they might be merged.
>>>
>>> We did not get to other agenda today.
>>>
>>> The full meeting log is here:
>>> http://www.w3.org/2015/02/03-hcls-minutes.html
>>>
>>> Thanks!
>>> David Booth
>>>
>>>
>>>
>>
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Received on Saturday, 7 February 2015 04:30:11 UTC

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