json-ld 1.1 preprocessing checklist

[dbooth-boston]

We might want to break this into separate issues, but I thought I would experiment with github's new-ish checklist feature.

These are known issues that we'll need to address in a JSON preprocessor. Please add to these if you think of more.

• [x] Map fhir:valueX properties to RDF datatypes. See slide 5: https://lists.w3.org/Archives/Public/www-archive/2019Nov/att-0000/FHIRRdf.pdf
• [ ] Connect FHIR extension element "_foo" to element "foo", so that an RDF query can traverse from any element ?foo to its extensions, without hard-coding the element names. See slide 8: https://lists.w3.org/Archives/Public/www-archive/2019Nov/att-0000/FHIRRdf.pdf See #77
• [x] Runtime type determination of dateTime union types. fhir:valueDate and valueDateTime (any others?) require runtime inspection of the value in order to determine the specific RDF type that was used. See #78
• [x] Runtime type determination of number union types: xsd:int, xsd:decimal, xsd:double. See #99
• [x] Retain significant digits in decimals, such as "1.000" versus "1.0". See #92 Note in #92 that we decided not to fix this.
• [x] Add fhir:nodeRole fhir:treeRoot . See https://www.hl7.org/fhir/rdf.html
• [x] Add id elements that get removed by @id conversion to URIs. This is needed because when the FHIR/JSON says "id": "abc123" is an @id in the @context, it becomes the URI of the element, which means that the "id" string property is lost. Preprocessing can replicate the property to enable it to both stay as a string and become a URI.
• [x] Add fhir:link properties. See https://www.hl7.org/fhir/rdf.html#reference
• [x] Add types of Concept references. See https://www.hl7.org/fhir/rdf.html#concept

[dbooth-boston]

I added the R5 label because some of these items are relevant to R5.

[dbooth-boston]

Relevant to the "union types" sub-issue, here's an example of how to handle union types in JSON-LD: https://tinyurl.com/2p88swzd

http://build.fhir.org/datatypes.html#dateTime

The problem of union types was described in issue #78

[dbooth-boston]

Done in R5