Hi Thomas, I think I have used DV+DURATION in all of these circumstances.. My impression has been that DV_QUANTITY with time property was deprecated.
Ian Dr Ian McNicoll office / fax? +44(0)1536 414994 mobile +44 (0)775 209 7859 skype ianmcnicoll ian.mcnicoll at oceaninformatics.com Clinical analyst,?Ocean Informatics openEHR Clinical Knowledge Editor www.openehr.org/knowledge Honorary Senior Research Associate, CHIME, UCL BCS Primary Health Care SG Group www.phcsg.org On 17 December 2010 13:48, Thomas Beale <thomas.beale at oceaninformatics.com> wrote: > > The most usual uses are: > > DV_DURATION - time periods in the 'social' timescale, e.g. hours, days, > weeks, months, years - e.g. pregnancy, Expected Date of Delivery, duration > of migraine > DV_QUANTITY - short time periods, being treated more mathematically, e.g. > seconds or smaller, minutes and hours > > both can be used for computation and can be inter-converted. > > - thomas > > On 17/12/2010 13:22, Leonardo Moretti wrote: > > I'm wondering which is the correct use of DV_DURATION and DV_QUANTITY... > When using DV_QUANTITY with property attribute 'time' (openehr::128) and > when using DV_DURATION? > > Regards > leo > > > _______________________________________________ > openEHR-technical mailing list > openEHR-technical at openehr.org > http://lists.chime.ucl.ac.uk/mailman/listinfo/openehr-technical > >

