I think, we happen to be in full agreement. Gerard Freriks +31 620347088 gf...@luna.nl
Kattensingel 20 2801 CA Gouda the Netherlands > On 2 Apr 2018, at 01:06, Thomas Beale <thomas.be...@openehr.org> wrote: > > > In a so-called closed-world system, everything that is stated constitutes the > totality of the truths about the world it relates to. In particular, absence > of an assertion (such as 'patient X has cancer') means negation, i.e. that > patient X doesn't have cancer. But openEHR and 13606 don't work like that; > absence of some particular statement about X just means nothing has been said > about the relevant issue so far. > > - thomas > > On 01/04/2018 23:35, GF wrote: >> Thomas, >> >> OpenEHR and 13606 deal with Closed World Assumption systems. >> And therefor both mean in the case of 'No Cancer' that Cancer was not found >> in the database or that No Cancer was the documented result of an evaluation. >> Both statements are documented things in a Template that according to the >> author cancer is not found. >> But any time in the future it might. >> >> 'No Cancer' as pre-coordinated term in the case of SNOMED means that no >> cancer was, is, or will be present. > > > _______________________________________________ > openEHR-technical mailing list > openEHR-technical@lists.openehr.org > http://lists.openehr.org/mailman/listinfo/openehr-technical_lists.openehr.org
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