On 10/25/06, Andrew Patterson <andrewpatto at gmail.com> wrote:
>
> I should also note that after I had posted my initial query
> about existence constraints last month I found a section in the ADL spec
> that actually deals with this
>
> section 4.3.5 "Any" constraints
> "however, it also provides an opportunity to specify an existence
> constraint
> which might be narrower than that in the information model."
>
> So my interpretation would be that the correct syntax
> for a zero existence constraint would be therefore
>
> attribute existence matches {0} matches {*}Hi Andrew It's valid only if the attribute is optional in the containing class from the reference model. / Rong Andrew > _______________________________________________ > openEHR-technical mailing list > openEHR-technical at openehr.org > http://www.chime.ucl.ac.uk/mailman/listinfo/openehr-technical > -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.openehr.org/mailman/private/openehr-technical_lists.openehr.org/attachments/20061025/a202d66e/attachment.html> -------------- next part -------------- _______________________________________________ openEHR-technical mailing list openEHR-technical at openehr.org http://www.chime.ucl.ac.uk/mailman/listinfo/openehr-technical
