Folks, I will repeat myself.
You are talking about a data type. This DV_Quantity is a number. The question is how do we embellish this data type and the number it presents with extra codes/numbers to indicate: types of certainty/ uncertainty, and statistical distributions. The only real meaning of an extra attribute as part of DV-Quantity pertains to the number given and not the meaning (interpretation). The extra attribute in DV-Quantity will provide information about the precision of the number, only. Any extra information is a property of the concept in which DV- Quantity is used. E.g. certainty/uncertainty, distribution, etc. It is related to the specific concept and its context that is being expressed and not the expression of a number/data type. ~, statistical distributions, etc will have to be expressed at the level of Concept definition and therefore the Archetype. Greetings Gerard -- <private> -- Gerard Freriks, arts Huigsloterdijk 378 2158 LR Buitenkaag The Netherlands T: +31 252 544896 M: +31 654 792800 On 21-apr-2006, at 17:12, Thomas Beale wrote: > this seems pretty close to a correct model. Slight corrections I > would suggest are: > - I am still uncomfortable with '~', since it seems to mean > "approximate", but "we don't know how approximate"... > - does "None" mean a) none recorded (i.e. don't know, i.e. same as > '~') or b) no accuracy, i.e. an exact value (reasonable for some > things, e.g. the answer to the question "number of previous > pregnancies")? > - in the case of a statistical distribution, one value may not be > enough to characterise the limits, since the distribution may be > asymmetric (I don't remember enough beyond normal/T/Chi2 to > remember if there are distributions that need even more parameters). > > The question for us in openEHR is how much to implement of such a > model: we have to be driven by real use cases. -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.openehr.org/mailman/private/openehr-technical_lists.openehr.org/attachments/20060422/0fc646a3/attachment.html>
