Hi Seref, This means - you have to have at least one event, but it could be either EVENT or INTERVAL_EVENT.
Does that make sense. Cheers, Sam > -----Original Message----- > From: openehr-clinical-bounces at openehr.org [mailto:openehr-clinical- > bounces at openehr.org] On Behalf Of Seref Arikan > Sent: Tuesday, 2 August 2011 8:17 PM > To: For openEHR clinical discussions > Subject: Question about occurrences and cardinality values in the Blood > Pressure archetype > > Greetings, > Am I suffering from acute caffeine deficiency syndrome (just made it > up) or is there a problem with the occurrences of event and > interval_events in the blood pressure archetype? > In the published blood pressure archetype in the CKM, HISTORY[at0001] > has events with cardinality {1..*; unordered} > However "EVENT[at0006] occurrences matches {0..*}" and > "INTERVAL_EVENT[at1042] occurrences matches {0..1}" under the history > allow zero instances of both of these elements. > So the cardinality sets 1 as the minimum member count for the > container attribute, but occurrences attributes of objects introduce > 0, which is beyond allowed boundaries. In plain English: cardinality > says there has to be at least one, but objects say, there can be zero > or more. When both objects have zero instances, the cardinality > constraint is violated. > > Comments? > _______________________________________________ > openEHR-clinical mailing list > openEHR-clinical at openehr.org > http://lists.chime.ucl.ac.uk/mailman/listinfo/openehr-clinical
