> On 10 Nov 2017, at 14:19, Thomas Beale <thomas.be...@openehr.org> wrote: > > > > On 10/11/2017 10:24, GF wrote: >> Hi, >> >> Even when elements make no sense when both are recorded, even then 1..1 is a >> problem in Archetypes. >> It is up to the implementer to decide to restrict 0..n further in the >> Template. > > you can't restrict from 1..1 => 0..* in a template - it's not allowed in any > restriction algebra, of which ADL is an example. > > If it is thought that no occurrnces constraint might be needed in any > derivative archetype or template, the original parent should have 0..1 or > 0..* as appropriate. Yes, but I think making all archetypes generic like Gerard suggests is not a good idea.
Bostjan > > - thomas > > > _______________________________________________ > openEHR-implementers mailing list > openEHR-implementers@lists.openehr.org > http://lists.openehr.org/mailman/listinfo/openehr-implementers_lists.openehr.org _______________________________________________ openEHR-implementers mailing list openEHR-implementers@lists.openehr.org http://lists.openehr.org/mailman/listinfo/openehr-implementers_lists.openehr.org
