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14:55:31 <dbooth> Meeting: FHIR RDF
14:55:33 <dbooth> Chair: David Booth
15:04:05 <dbooth> Topic: Issues 77 and 93
15:04:07 <dbooth> https://github.com/w3c/hcls-fhir-rdf/issues/93
15:07:28 <dbooth> eric: On 93, option 2c, we currently have: fhir:origValueBoolean  true
15:09:43 <dbooth> ... Propose adding origValueBoolean also to #77 for regular extensions.
15:10:06 <dbooth> ... Or just fhir:value
15:10:51 <dbooth> ... In RDF we typically put the datatype in the value itself, instead of making a separate property name for each datatype.
15:11:24 <dbooth> ... e.g., in RDF 'fhir:valueDecimal  0.75' is redundant, because 0.75 is already xsd:decimal
15:14:43 <dbooth> eric: could call it "extendedValue"
15:14:50 <dbooth> david: Or "originalValue"
15:20:22 <dbooth> eric: We cannot call it fhir:value  because that's already used.
15:23:22 <dbooth> ACTION: Eric to write up proposed resolution for #93 and #77
15:23:49 <dbooth> Topic: Issue 76: How should list ordering be preserved in R5?
15:23:55 <dbooth> https://github.com/w3c/hcls-fhir-rdf/issues/76
15:24:17 <dbooth> jim: On the last call, people seemed inclined to stay with the R4 approach
15:24:36 <dbooth> eric: I'm slightly inclined to change to RDF lists now.
15:25:09 <dbooth> jim: Difficult to use the ordering in SPARQL
15:25:51 <dbooth> eric: True.  But rarely care about the order.  Only care when validating slicing.
15:26:06 <dbooth> ... e.g., first entry in an address is a home address.
15:27:20 <dbooth> david: Do we have more usage data, on the impact this has on SPARQL queries?
15:27:40 <dbooth> eric: None of our NHS queries have cared about the order.
15:28:16 <dbooth> brad: I've never had to care about the order either.
15:31:36 <dbooth> james: Patient name, and patient telecon has the order preserved.
15:31:53 <dbooth> ... But I haven't had experience needing to care about the order.
15:32:15 <dbooth> ... I'm more working on generating the FHIR data.
15:33:00 <dbooth> brad: If a patient has multiple names, we only care about all the possibilities, we don't care about the order.
15:33:28 <dbooth> james: Might be important with labs or medications.
15:33:52 <dbooth> brad: Everything comes through with a datetime on labs, so we use that.
15:34:07 <dbooth> ... People care about trending ... "give me the 5 most recent".
15:34:57 <dbooth> eric: People care in a slicing example, but shex takes care of that.
15:35:53 <dbooth> ... JSON-LD 1.1 supports RDF collections now, so that would allow more of the conversion processing to be done using JSON-LD 1.1 rather than doing it in the preprocessing.
15:37:05 <dbooth> jim: RDF list is nice and concise.  Leaning toward that.
15:43:22 <dbooth> ACTION: David to write up option 4, and new option 3 to be a regular RDF list
15:45:33 <dbooth> Eric: suggest using as example, a series of codings in a codeableConcept, or a series of addresses.
15:46:01 <dbooth> ACTION: David to change to a better example also.
15:47:56 <dbooth> david: Is there enough benefit to make this change to R5?
15:48:09 <dbooth> eric: We can make this change in our code.  Now is the time to do it.
15:50:39 <dbooth> Topic: Issue 69: Shorten FHIR property names or use superproperties?
15:50:48 <dbooth> https://github.com/w3c/hcls-fhir-rdf/issues/69
15:52:19 <dbooth> eric: Want to remove the datatype from the property name: instead of fhir:valueBoolean it would be fhir:value .
15:53:23 <dbooth> ... Instead of fhir:valueCodeableConcept it would be fhir:value [ a fihr:CodeableConcept ; ... ] for complex types.
15:53:44 <dbooth> jim: https://github.com/w3c/hcls-fhir-rdf/issues/69
15:54:12 <dbooth> s|jim: https://github.com/w3c/hcls-fhir-rdf/issues/69||
15:54:37 <dbooth> jim: https://www.hl7.org/fhir/observation.html#resource
15:58:19 <dbooth> eric: OWL DL won't allow classification based on a property value that is a literal.
16:00:27 <dbooth> ADJOURNED
16:16:06 <dbooth> Present: David Booth, EricP, Jim Balhoff, James Champion, Brad Simons, Gaurav Vaidya, Gopi
16:16:15 <dbooth> rrsagent, draft minutes
16:16:15 <RRSAgent> I have made the request to generate https://www.w3.org/2021/10/28-hcls-minutes.html dbooth