Tom, Well this use case is a DV_Duration. Therefore should this new attribute be put on DV_MEASURABLE? This might have some use cases for other Date/times as well. This is different to partial dates. This would allow use to say something like "this occurred before 1 May 2006". Or is this what the DV_Time_Specifcation types are used for?
Heath -----Original Message----- From: owner-openehr-techni...@openehr.org [mailto:owner-openehr-technical at openehr.org] On Behalf Of Thomas Beale Sent: Friday, 28 April 2006 11:49 PM To: openehr-technical at openehr.org Subject: Re: Pathology numeric values not supported in DV_Quantity William E Hammond wrote: > Just yesterday I ran into this construct in looking at a dosing > algorithm for pediatrics. Without the detail, the first time-related > logic specified for the period of less than 7 days (<7 days. The next > logic line specified > >> = 7 days. Without the >=, the logic would have been awkward at best. >> > > Ed Hammond > Hi Ed, these are the kind of cases we need, and you have probably seen more data than anyone. I am convinced to leave <=, >= in ;-) - thomas
