Greetings, According to adl 1.5 document on the openEHR web site (issued 25 Jan 2012), Section 5.3.6.3, the runtime paths for single valued attributes can omit node identifer. The example given in the document uses miles per hour and km per hour alternatives. The thing is, if the runtime path is what is going to be persisted (and I can't see any other practical cases), the persisted data will have no information to mark the semantics of the selection of an option among alternatives.
In case of a query such as get me all Xs where value is expressed as km per hour, the system can not know what which option was used: kmph or mph, because there is not node identifier. In decision support/ machine learning use cases, having different units of measurements would lead to mayhem etc etc. So there is a potential loss of information here, in exchange for flexibility, but what is the use of that flexibility? Should not the node identifier be mandatory in runtime paths when there is a decision among alternatives? Kind regards Seref -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.openehr.org/pipermail/openehr-technical_lists.openehr.org/attachments/20120814/65eb9df6/attachment.html>
