W3C

– DRAFT –
FHIR RDF

20 February 2025

Attendees

Present
David Booth, Detlef Grittner, Erich Bremer, EricP, Gaurav Vaidya (briefly), Jim Balhoff
Regrets
-
Chair
David Booth
Scribe
dbooth

Meeting minutes

Concept IRIs

gaurav: Made a punch list for me: w3c/hcls-fhir-rdf#160
… On vac the next 2 weeks.

DICOM

erich: RFC 8141 introduces extra components to URNs

https://datatracker.ietf.org/doc/html/rfc8141#section-2

erich: If you add a frag ID to the URN, then you aren't squatting on someone else's namespace.
… How to refer to subportions of files? DICOM is a container format, and we want to to refer to a subsection.

eric: The frag ID can also just provide additional info, not necessarily related to the URI on which it is affixed.

dbooth: Media type seems to own the frag ID interpretation

erich: Should get DICOM's buy-in to treat the frag ID as identifying a portion of the DICOM file

eric: Media type is used for both semantics and format. The pluses try to make that less painful.
… If we're trying to identify the 5th item of list 7, that's applicable to more than just RDF.

https://dicom.nema.org/medical/dicom/current/output/chtml/part18/sect_8.7.3.5.html

https://www.iana.org/assignments/media-types/application/dicom+json

dbooth: DICOM media registration does not specify frag ID semantics: https://www.iana.org/assignments/media-types/application/dicom+json
… Can propose it to the DICOM folks when we propose the rest.

detlef: Would this allow us to identify any attribute in DICOM?

eric: Like JSON path
… Suppose you have a JSON path in JSON-LD, then that would effectively give you a URI for it, instead of just a bnode.

erich: The problem we want to solve is to have an identifier for each element of a list.
… I want to talk w DICOm folks soon, bc they want to be involved.

dbooth: specifically suggest using JSON path in the frag ID?

AGREED: suggest using JSON path in the DICOM frag ID

ADJOURNED

Minutes manually created (not a transcript), formatted by scribe.perl version 242 (Fri Dec 20 18:32:17 2024 UTC).

Diagnostics

Succeeded: s/frag ID/DICOM frag ID/

No scribenick or scribe found. Guessed: dbooth

Maybe present: AGREED, dbooth, detlef, eric, erich, gaurav

All speakers: AGREED, dbooth, detlef, eric, erich, gaurav

Active on IRC: dbooth