Re: [xml-dev] Why does XML Schema allow elements with complex type to be nillable?
Another potential use case would be in healthcare - there's a difference between saying the patient has no allergies, and the patient has no known allergies.
HL7 CDA and FHIR express this difference in other ways though. CDA and FHIR use a particular attribute with a fixed set of values to correspond to the various cases (unknown, not asked, not applicable, ...). https://www.hl7.org/fhir/v3/NullFlavor/cs.html has the details.
Lauren
On Fri, Jul 12, 2019 at 6:40 AM Tomos Hillman <[email protected]> wrote:
On 12 Jul 2019, 11:24 +0100, Rick Jelliffe <[email protected]>, wrote:
I don't think you should use nillible for the case of someone who has no middle name. That is simple optionality.nillible is for a more esoteric purpose: where whether that person has a middle name or not has not been disclosed. This may because you don't know, the client didn't ask, or you dont want to tell.I think there's also the use case where a middle name was present (erroneously?) and has been removed, perhaps leaving a modification time stamp attribute.Pretty horrible way to do it, IMO, but there you go
Thanks,Tom