Property paths help for some queries, but it is still hard to query all
items in a list (of unknown length) and get them back *in order*. See
the explanation here:
http://goo.gl/8PNuAG#heading=h.r5k2cm3j5iua
David Booth
On 05/06/2015 04:27 PM, Jim McCusker wrote:
Lists aren't that bad anymore in SPARQL, now that property paths are
available: http://www.snee.com/bobdc.blog/2014/04/rdf-lists-and-sparql.html
Jim
On Wed, May 6, 2015 at 4:25 PM David Booth <da...@dbooth.org
<mailto:da...@dbooth.org>> wrote:
In defining the RDF representation of FHIR data, we need to maintain
element ordering in some cases, both because ordering can be
semantically relevant (such as listing someone's preferred mailing
address first in a list of addresses), and to support round-tripping of
FHIR RDF data back to FHIR XML. Because native rdf:Lists are difficult
to query in SPARQL, we have talked about using some other list
representation. To inform our decision we would like to get input on
people's preferences. Here are the options we are considering:
Ordered List Ontology (OLO)
http://smiy.sourceforge.net/olo/spec/orderedlistontology.html
Collections Ontology (CO)
http://www.essepuntato.it/lode/owlapi/http://purl.org/co/
Simple List Conventions (SLC)
http://goo.gl/8PNuAG
To see how these three compare, the Simple List Conventions document at
http://goo.gl/8PNuAG includes comparisons with OLO and CO, and an
explanation of the difficulty of using native rdf:Lists in SPARQL.
Please indicate your opinion here:
http://goo.gl/forms/zXn2b4ueoM
Thanks!
David Booth
