Currently we define DV_QUANTIFIED.accuracy as a DV_QUANTITY. This means that the accuracy itself can be a quantity just like the quantity referring to it, e.g. 85kg +/- 2kg, or it can be a percentage, e.g. 85kg +/- 2%. Note that the former is absolute (doesn't change with the magnitude of the value) and the latter is proportional (does change). There is an argument that says that only percentages are ever really needed. If so, this would simplify the model, since we can just have a REAL number rather than a whole other DV_QUANTITY.
Thoughts? - thomas beale - If you have any questions about using this list, please send a message to d.lloyd at openehr.org
