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ehn-dcc-development / hcert-schema

Electronic Health Certificates Payload Schema
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Arrays in hCerts #9

Closed chris2286266 closed 3 years ago

chris2286266 commented 3 years ago

It is clear, that the "vac" element has to contain an array for more than one vaccination.

But what about the test and recovery elements?

A test result is valid for a couple of days at maximum and the next test superseeds the last one. So why should more than one (e.g. old) test results be stored in a hCert?

Recovery: Contains "Date of first positive test result". As there can only be one "first", storing more than one recovery statement in a hCert is senslessless imho.

Can we discuss/decide this in this github group? Or shall we ask e.g. Stefanie from the Semantic Subgroup?

jschlyter commented 3 years ago

I would guess multiple tst and rec also makes sense as you can recover from multiple dis.

chris2286266 commented 3 years ago

At the moment everything is defined for one dis: "840539006" which is Covid-19. I guess, if the current hCert ever is extended for further diseases, a lot of other changes would be necessary ...

jschlyter commented 3 years ago

I'd like to reopen this just move tst and rec to arrays, would that be a problem @chris2286266 ?

chris2286266 commented 3 years ago

Not a technical problem. I just think, it is semantically wrong to have more than one "recovery of the same disease which ends on exactly the same date" more than once.

chris2286266 commented 3 years ago

But I think it is more important to come to a V1.0 than to get every aspect 100% correct, which is impossible anyway ;-)

jschlyter commented 3 years ago

Then I suggest we include this and let the semantics handle it later. Better to get the overall datatype right now.