? > In order to solve it we must look forward and reduce the 'grey zone' > by acknowledging that most post-coordination (using modifiers in > Snomed-space instead of Archetype/Template space) must end. > > > Gerard
Realizing that the current Snomed CT Concept Model is not enough (today, unfortunately by far) and that the tools for supporting constrained post-coordination mainly are lacking, at least Snomed CT provides *some* constraints on semantics in areas where openEHR provides none. Also, the suggestion by David Markwell, I believe, is to represent semantics in Snomed space *as well as* in the archetype space. Also, I firmly believe that the "grey zone" will always exist as it is the result of the concurrent use of two different models of semantics. Thus, the boundary problem will not be "solved", rather we will have to develop methods that makes the "grey zone" related problems less harmful. Regards, Daniel -- Daniel Karlsson, PhD Department of Biomedical Engineering/Medical Informatics Link?pings universitet SE-58185 Link?ping Sweden Ph. +46 13 227573, +46 70 8350109

