- From: Eric Prud'hommeaux <eric@w3.org>
- Date: Thu, 19 Feb 2015 09:38:34 -0500
- To: Richard Cyganiak <richard@cyganiak.de>
- Cc: Arthur Ryman <ryman@ca.ibm.com>, public-data-shapes-wg@w3.org
* Richard Cyganiak <richard@cyganiak.de> [2015-02-19 07:55+0000] > Hi Arthur, > > You said in yesterday's F2F discussions that you think of shapes as being evaluated against an RDF Dataset, not just a single RDF graph. > > Are there recorded user stories or use cases, or any other documentation, that motivate the necessity for this? I don't think so. I know JJC requested this and I expect that others will to. I figured that once we told the world what the graph language looked like, we'd hear back from LDP folks with use cases to stick graphs here and there. A trivial one is that a fhir:Observation record include either a patient ID or a reference to a patient in another graph and that patient have an ID; the second option is in this example: data: GRAPH <enc1234> { <enc1234> a :Encounter; Encounter:subject [ a :ResourceReference; ResourceReference:reference "Patient/f201"; ResourceReference:display "Roel"; ]. } GRAPH <Patient/f201> { <Patient/f201> a :Patient; Patient:identifier [ a :Identifier; Identifier:system <urn:oid:1.2.36.146.595.217.0.1>; Identifier:value "12345"; Identifier:period [ a :Period; Period:start [ a fhir:dateTime; fhir:value "2001-05-06"; ]; ]; ]; } I think this is relatively typical of the systems that keep stuff about <X> in <X>. > My thinking so far was that validating single graphs is sufficient but I’d be happy to be convinced otherwise. I'm convinced that the use cases exist, and if we had a V2, it would include graphs but have no idea whether we'll be sufficiently motivated to go that far for V1. > Richard -- -ericP office: +1.617.599.3509 mobile: +33.6.80.80.35.59 (eric@w3.org) Feel free to forward this message to any list for any purpose other than email address distribution. There are subtle nuances encoded in font variation and clever layout which can only be seen by printing this message on high-clay paper.
Received on Thursday, 19 February 2015 14:38:39 UTC