Hi Thomas, I can certainly see a situation where e.g A medication order was issued and the medication administered within a short time period, requiring dynamic persistent medication summary updates (with references/links to the original Entries in event Compositions) where a lazy commit could cause an issue. A problem summary list collision is less likely but possible e.g. where an EHR is fully problem-oriented and a patient sees the GP, then visits a practice nurse, without the GP record being committed first.
Ian On 15 April 2013 15:16, Thomas Beale <thomas.beale at oceaninformatics.com> wrote: > On 15/04/2013 14:37, Grahame Grieve wrote: >> >> "big risk" - it's a combination of how likely it is, and how bad it is if >> they are. >> >> Generally, current location, current medication lists, summary lists are >> things where contention can happen. Quite often, I've seen, a cascade of >> things will happen on a patient simultaineously as multiple people focus on >> the patient >> >> The other place where contention is a problem I've experience has been >> pathology reports that are not complete - in a busy lab doing 2000 >> reports/day, I observed editing contention 10-20x a day on average. That's >> pretty low, but the consequences of a clash.... bad..... >> > > that's very interesting. I don't think we've seen anything like that - not > that I doubt what you are saying here. It would be very interesting to know > in what circumstances competitive updates to Rx and Dx list for a patient > occur. Smart systems might track such things and turn on pessimistic (i.e. > locking-based) versioning. > > - thomas > > > _______________________________________________ > openEHR-technical mailing list > openEHR-technical at lists.openehr.org > http://lists.openehr.org/mailman/listinfo/openehr-technical_lists.openehr.org -- Dr Ian McNicoll office +44 (0)1536 414 994 fax +44 (0)1536 516317 mobile +44 (0)775 209 7859 skype ianmcnicoll ian.mcnicoll at oceaninformatics.com Clinical Modelling Consultant, Ocean Informatics, UK Director openEHR Foundation www.openehr.org/knowledge Honorary Senior Research Associate, CHIME, UCL SCIMP Working Group, NHS Scotland BCS Primary Health Care www.phcsg.org
