Hi Mikael, Thomas There are certainly instances of sets being generated by authorities other than national release centres, ones that conform to the SNOMED CT guidance, which requires their identifiers include a recognised namespace. Two aspects of this topic are 1) that you need access to tools which allocate unique identifiers, in accord with the standard and 2) that the allocation of namespace identifiers cannot be assumed to be a free-for-all although at last count there were in the region of 110, some of which were allocated to individuals. To use a Namespace you are obliged to conform to the SNOMED CT licence conditions and similar good behaviour.
Those with an interest in this topic may wish to join, for example, the SNOMED CT Implementation Special Interest Group via this link:- http://www.ihtsdo.org/join-us/help-improve-snomed-ct/ To join an established Special Interest Group mail to: info(at)ihtsdo.org stating which group you wish to join, 'Special Interest Groups (SIGs) are open and ongoing bodies that examine issues related to specified topics that are relevant to the IHTSDO and its members.' Tom Seabury IHTSDO From: openehr-clinical-bounces at chime.ucl.ac.uk [mailto:[email protected]] On Behalf Of Mikael Nystr?m Sent: 06 May 2010 16:51 To: 'For openEHR clinical discussions' Subject: RE: IHTSDO meeting - term binding presentation available Hi Thomas, As another member of IHTSDO Technical Committee I would like to ask from where you have got your impression that RefSets should mainly be maintained by the national release centers, because that is not at all my impression. Some of the national release centers, like NHS in UK, maintain Subsets/RefSets, but I have never heard anything about that only the national release centers should create and maintain RefSets. My impression is that whoever that find it useful to create and maintain an own RefSet should be able to do it. The only requirement to create a RefSet is the technical requirement to have an own namespace to create the RefSet into. However, all organizations and persons with a valid SNOMED CT license can get an own namespace. (I have my own namespace, so if I would I could immediately produce and release as many RefSets that I want.) Greetings, Mikael From: openehr-clinical-bounces at chime.ucl.ac.uk [mailto:[email protected]] On Behalf Of Thomas Beale Sent: den 6 maj 2010 12:15 To: openehr-clinical at openehr.org Subject: Re: IHTSDO meeting - term binding presentation available On 06/05/2010 08:48, Sebastian Garde wrote: Hi Thomas, do you know if there is a formal way of how RefSets (=the resulting Snomed CT codes etc.) and the RefSet query (=the query on Snomed CT to get to the RefSet) are expressed and shared? the ref set results are defined by Snomed RF2 ref set specs, now in draft. I don't know whether they are allowed to be shared outside IHTSDO, but will find out. The query language is still an open question. Similar to what is described here but based on RefSets: http://www.openehr.org/wiki/display/term/Ocean+Terminology+Query+Language+%28TQL%29 I agree that RefSets are a good way forward, but they need to be available, reusable and sharable, etc. they do. The current IHTSDO thinking is that ref sets will mainly be defined by national release centres and maintained in the national extensions, with some major refsets being in the international release. I think this is far too restrictive a view, and that in future they will be defined and maintained in health care facilities, regional information centres and anywhere else that needs them. The IHTSDO representation and extension mechanism should be usable at all these levels. How it could be used for openEHR I have yet to find out, but am making enquiries as a member of the IHTSDO Technical Committee). - thomas ******************************************************************************************************************** This message may contain confidential information. If you are not the intended recipient please inform the sender that you have received the message in error before deleting it. Please do not disclose, copy or distribute information in this e-mail or take any action in reliance on its contents: to do so is strictly prohibited and may be unlawful. Thank you for your co-operation. NHSmail is the secure email and directory service available for all NHS staff in England and Scotland NHSmail is approved for exchanging patient data and other sensitive information with NHSmail and GSI recipients NHSmail provides an email address for your career in the NHS and can be accessed anywhere For more information and to find out how you can switch, visit www.connectingforhealth.nhs.uk/nhsmail ******************************************************************************************************************** -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.openehr.org/mailman/private/openehr-clinical_lists.openehr.org/attachments/20100506/206eff12/attachment.html>
