W3C

- DRAFT -

Semantic Web Health Care and Life Sciences Interest Group Teleconference

03 May 2016

See also: IRC log

Attendees

Present
David_Booth, EricP, Gopi, Thomas_Lukasik
Regrets
Chair
David Booth
Scribe
dbooth

Contents


<ericP> ShExDemo with ShEx2 example

<ericP> ShExDemo with ShEx2 example

issues list: https://github.com/w3c/hcls-fhir-rdf/issues

Canonicalization and relative URIs

JSON canonicalization is defined here: https://hl7-fhir.github.io/json.html

dbooth: We have two notions of equivalence currently : 1. byte for byte, or 2. the same after canonicalization.

thomas: If two documents have the same meaning then they are equivalent.

dbooth: but meaning is not algorithmically determinable.
... We need equivalence that is defined by an algorithm.

eric: FHIR abstract model, with ref impl, end up with a resource with properties. I can check if two docs are equivalent.

dbooth: I think that is basically how the canonicalization algorithm is defined.

XML canonicalization: https://hl7-fhir.github.io/xml.html

eric: You can get FHIR doc equivalence without having the same dig signature, i.e., without having the same canonical form.

dbooth: but what do you mean by equivalence?

eric: same values in the abstract model.

dbooth: I believe that would have to be 1:1 with the canonical form.
... If they are not 1:1 then the canonical form is deficient and needs to be corrected.
... Need to define an algorithm, such that for any two FHIR documents A and B, equiv(A, B) is true iff if they are equivalent according to that algorithm

ADJOURNED

Summary of Action Items

Summary of Resolutions

[End of minutes]

Minutes formatted by David Booth's scribe.perl version 1.144 (CVS log)
$Date: 2016/05/03 19:28:10 $

Scribe.perl diagnostic output

[Delete this section before finalizing the minutes.]
This is scribe.perl Revision: 1.144  of Date: 2015/11/17 08:39:34  
Check for newer version at http://dev.w3.org/cvsweb/~checkout~/2002/scribe/

Guessing input format: RRSAgent_Text_Format (score 1.00)

Succeeded: s/definition of equivalence/algorithm/
No ScribeNick specified.  Guessing ScribeNick: dbooth
Inferring Scribes: dbooth
Present: David_Booth EricP Gopi Thomas_Lukasik
Found Date: 03 May 2016
Guessing minutes URL: http://www.w3.org/2016/05/03-hcls-minutes.html
People with action items: 

[End of scribe.perl diagnostic output]