16:01:15 <RRSAgent> RRSAgent has joined #hcls
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16:01:24 <dbooth_> rrsagent, make logs public
16:01:31 <dbooth_> Meeting: FHIR RDF
16:01:35 <dbooth_> Chair: David Booth
16:06:29 <dbooth_> Topic: Concept URIs for codeableconcepts
16:06:30 <dbooth_> https://github.com/w3c/hcls-fhir-rdf/issues/94
16:09:07 <dbooth_> gaurav: Investigating adding prefixes to the FHIR spec, for use in generating FHIR RDF URIs for codeableconcepts.
16:09:41 <dbooth_> https://terminology.hl7.org/
16:10:18 <dbooth_> gaurav: This website is cool, it has all the info in it.
16:10:38 <dbooth_> ... E.g., to learn about the national drug codes.
16:10:59 <dbooth_> https://terminology.hl7.org/CodeSystem-v3-ndc.html
16:11:34 <dbooth_> gaurav: For CodeSystem there' an Identifier field.
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16:12:01 <dbooth_> https://terminology.hl7.org/NamingSystem-v3-ndc.html
16:12:14 <dbooth_> gaurav: The idea is to have a third value for prefix.
16:12:26 <dbooth_> eric: SNOMED is a good example, because it already has a URL.
16:13:06 <dbooth_> eric: Before deploying that, we'll need to ask orgs to honor the URL space that we're proposing for them.
16:13:16 <dbooth_> ... Outreach effort.
16:14:35 <dbooth_> gaurav: Now I know which repo this info comes from.  But there's also a node.js package, with a JSON version for all of this: https://simplifier.net/packages/hl7.terminology.r4/1.0.0/~files
16:14:59 <dbooth_> ... OIDs and URIs also show up there.  You can view it as JSON, XML or Turtle.
16:15:40 <dbooth_> gaurav: Still trying to determine if a change to this repo is reflected in the spec, or if anything else needs to be changed.
16:16:10 <dbooth_> ... I raised an issue and got an immediate response from Grahame: https://github.com/HL7/UTG/issues/7#issuecomment-1000173095
16:16:52 <dbooth_> gaurav: If we fix it here, it should propagate everywhere.
16:17:24 <dbooth_> ... Grahame said to discuss it on chat.fhir.org #terminology and expect lots of arguments.
16:18:15 <dbooth_> ... Think we should finish determining exactly what needs to be changed, then launch the outreach effort.
16:18:46 <dbooth_> ... NamingSystem says that someone somewhere has a system for codes, and CodeSystem says what the codes are.
16:19:18 <dbooth_> eric: They don't want to invent terms in a valueset.  They put it into a codesystem instead.
16:20:26 <dbooth_> eric: Also suggest that when we invent a mapping (if an org has not done it), we do it in the HL7 space, and make clear that it may be superseded by that org.
16:21:27 <dbooth_> gaurav: This page suggests a particular convention for "temporary" URIs: https://build.fhir.org/terminologies.html#system
16:22:36 <dbooth_> brad: Want to be sure we don't jeopardize what's going on with US Core stuff.  They define various systems in codings.
16:22:55 <dbooth_> http://www.hl7.org/fhir/us/core/terminology.html
16:23:18 <ericP> includes the text:
16:23:19 <ericP> [[
16:23:21 <ericP> terminology.hl7.org/temporary/CodeSystem/xxxxx (where xxxx is a meaningful text string)
16:23:27 <ericP> ]]
16:23:29 <dbooth_> brad: They talk about various codings and require certain URLs.
16:23:48 <ericP> ... so coordinate with US-Core
16:24:33 <ericP> s/includes the text/includes the template/
16:26:08 <dbooth_> eric: Pick a couple like disease ont and BFO, and try to get others on board.
16:27:41 <dbooth_> ACTION: David to find who at Regenstrief might be a contact
16:30:44 <dbooth_> eric: Kent Spackman wrote a perl script to convert SNOMED terms to URLs, but the org does not provide a website supporting them.
16:32:42 <dbooth_> eric: 1. whether that's the official URL vs 2. whether you can HTTP GET that URL.
16:33:23 <dbooth_> ... When Kent picked purl.org, that was the trend at the time.  But it's out of favor now, and it has limited server capacity.
16:36:14 <dbooth_> david: Could this mapping from system+code to URL be inferred using OWL?
16:36:31 <dbooth_> eric: Cannot do literal inference in OWL.
16:36:37 <dbooth_> ... I tried it.  :(
16:37:08 <dbooth_> gaurav: Could also provide a mapping server, but maintaining it would too much work.
16:38:15 <dbooth_> eric: Wonder how hard it would be to set up a CTS-2 server to do that.  https://www.omg.org/spec/CTS2/
16:40:57 <dbooth_> david: But not really needed if we get it into the FHIR spec.
16:41:18 <dbooth_> ben: NHS are running an instance and I believe Germany set up an instance
16:41:25 <dbooth_> ben: eg https://www.healthterminologies.gov.au/access/ backed by ontoserver
16:41:31 <dbooth_> ben: and NHS instance https://digital.nhs.uk/services/terminology-servers
16:42:19 <dbooth_> ben: SNOMED has different regions and additions.
16:43:02 <dbooth_> ... ontoserver also has federation capabilities.
16:44:47 <dbooth_> ... Different health systems have different requirements
16:48:43 <dbooth_> ... If those URIs are put into the FHIR terminology server, then hopefully they'll be picked up by various terminology servers.
16:50:04 <dbooth_> ben: regional editions are both subsets and extensions (terms that they want to get in sooner).
16:52:05 <dbooth_> topic: Adding third pane to FHIR JSON-LD playground
16:52:23 <dbooth_> james: Functionally finished.  Testing now.
16:52:45 <dbooth_> ... Option to choose between two versions of JSON-LD.  Which to use?
16:52:54 <dbooth_> eric: We need 1.1.
16:54:26 <dbooth_> ACTION: James to give a demo next week of FHIR JSON-LD playground
16:54:37 <dbooth_> Topic: Turtle serializer
16:54:58 <dbooth_> eric: I put turtle serializer into my FHIR JSOn-LD playground.
16:55:03 <dbooth_> (gives demo)
16:57:17 <dbooth_> james: How is nquads used?  Does anyone use it?
16:57:44 <dbooth_> eric: nquads is a subset of turtle.
16:58:31 <dbooth_> james: Can i get this code?
17:02:36 <dbooth_> eric: Yes, it's checked in.
17:02:41 <dbooth_> david: Call that tab Canonicalized  NQuads?
17:03:40 <ericP> https://github.com/ericprud/fhircat-playground/blob/ericP-variant/fhirlib/test/FhirTurtleSerializer.test.js
17:06:14 <dbooth_> ADJOURNED
17:08:47 <dbooth_> Present: Brad Simons, David Booth, EricP, James Champion, Gaurav Vaidya, Dagmar, Ben McAlister
17:09:16 <dbooth_> rrsagent, draft minutes
17:09:16 <RRSAgent> I have made the request to generate https://www.w3.org/2022/01/13-hcls-minutes.html dbooth_
17:27:14 <dbooth> dbooth has joined #hcls
17:27:31 <dbooth> rrsagent, make logs public
17:31:53 <dbooth> i/Kent Spackman wrote a perl/david: [FOLLOWUP] In Sept 2020 Swapna Abhyankar <sabhyank@regenstrief.org> from Regenstrief was very helpful in responding to LOINC licensing questions.  He might be a good contact.
17:32:15 <dbooth> rrsagent, draft minutes
17:32:15 <RRSAgent> I have made the request to generate https://www.w3.org/2022/01/13-hcls-minutes.html dbooth