I can see the point now. I couldn't understand the benefits of the new UID attributes. It is OK if they become mandatory in 2.0. We just have to have clear rules to know when a new instance_id has to be created.
2014-11-18 14:31 GMT+01:00 Thomas Beale <thomas.beale at oceaninformatics.com>: > On 18/11/2014 12:50, David Moner wrote: > > Hi, > > I was not aware of this addition. It is clear that having these UIDs it > will be simpler to check if the archetype has changed, as you say. But is > it also the intention of these UIDs to be used to fill the archetype_id > attributes in the RM instances? Or the link between the instance and an > specific archetype will be done using the traditional archetype > identifier+version+revision+build? Moreover, if now we will have unique > identifiers with version+revision+build, why do we need an additional UID? > > David > > > Hi David, > > Personally I don't think UIDs are needed; checking if an archetype has > changed is easier to do with an MD5. UIDs are mostly a distraction. > > But some people and more particularly governments like them. So if we > include them in the AOM, then I guess they have to work. So making them > optional won't work - because they can't be generated from anything, you > have to 'have them' which means they have to have been created at the right > point in time, usually by the creator or modifier of some artefact. > > I don't see any utility in mixing UIDs into the human-readable ID (HRID) > either in models or in data. They aren't shorter, and you can't infer > anything from them as you can with the HRID, and noone who needs to inspect > data (as inescapably happens routinely in integration development work) can > easily work with UIDs. So their utility is largely imaginary in my view. > But not everyone agrees with that.... > > - thomas > > _______________________________________________ > openEHR-technical mailing list > openEHR-technical at lists.openehr.org > > http://lists.openehr.org/mailman/listinfo/openehr-technical_lists.openehr.org > -- David Moner Cano Grupo de Inform?tica Biom?dica - IBIME Instituto ITACA http://www.ibime.upv.es http://www.linkedin.com/in/davidmoner Universidad Polit?cnica de Valencia (UPV) Camino de Vera, s/n, Edificio G-8, Acceso B, 3? planta Valencia - 46022 (Espa?a) -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.openehr.org/pipermail/openehr-technical_lists.openehr.org/attachments/20141118/923c120a/attachment.html>
