Archetype

Implementers (archive)
1

Hi All
I have a question about some of the openehr Archetypes.
Why some of them(like Encounter,Discharge) doesn’t have any thing in it, not evevn other Archetypes included? I can’t get the point .How they can be used?
Could anybody help me please.

Thanks in advance

2

Hi,

These are Composition archetypes, which serve only to place broad structural constraints for particular styles of ‘document’. The Entry archetypes which contain the clinical statements are placed within ‘Slots’. This would normally be constrained for a particular use-case by an openEHR Template.

This is an example from the NHS of an HTML view of an Encounter composition archetype with its slots populated at Template level

http://svn.openehr.org/knowledge/TAGS/dev-uk-nhs/Lorenzo_3.5/pub/ContentRelease-1.0.1/templates/gen/html/Emergency-LimbPainOrBoneInjury.v1draft.html

Ian

Dr Ian McNicoll
office / fax +44(0)141 560 4657
mobile +44 (0)775 209 7859
skype ianmcnicoll
ian@mcmi.co.uk

Clinical Analyst - Ocean Informatics ian.mcnicoll@oceaninformatics.com

Consultant - IRIS GP Accounts ian@gpacc.co.uk

Member of BCS Primary Health Care Specialist Group – www.phcsg.org

2008/10/26 masoumeh seydi <simorgh_000@yahoo.com>

3

Hi Masoumeh

The idea of very generic compositions like this is not to constrain the contents, but to add some features to the composition context that are required. So it is in the context that you will find the differences.

If the composition is a persistent composition (no context) then you expect the types of entries (or sections) to be limited so that users would find what they expected (e.g. problems, operations, medications…)

Hope that helps,

Sam

4

Hi
Thanks for the your help.What I can get is thet we can add every Entry we need in compositions structure. Am I right?

Regards

5

Hi Sam
I can’t get it,would you explain it more please?

Best Regards

6

Hi Masoumeh,

Yes that is correct. The Composition is the unit of commital within openEHR i.e saving the record. Every Entry within an openEHR system will be within a Composition.

Ian

Dr Ian McNicoll
office / fax +44(0)141 560 4657
mobile +44 (0)775 209 7859
skype ianmcnicoll
ian@mcmi.co.uk

Clinical Analyst - Ocean Informatics ian.mcnicoll@oceaninformatics.com

Consultant - IRIS GP Accounts ian@gpacc.co.uk

Member of BCS Primary Health Care Specialist Group – www.phcsg.org

2008/10/28 masoumeh seydi <simorgh_000@yahoo.com>

7

Hi Masoumeh

You can think of the composition as a document header and as Ian said, it is the minimum unit of commital to an openEHR store. The data is contained in the entries and the layers of an openEHR instance of data are like this (for example)

Composition
Section
Entry
Section
Entry
Entry
Cluster
Section
Entry

All of these being individual archetypes. Of course there are also Structure, Cluster and Element archetypes possible, all of which fit under the Entry archetype class and enable reuse at this level.

So when you look at a composition archetype, often you will only see differences in the context part of the archetype that have been modelled for a particular purpose.

regards Hugh

Ian McNicoll wrote: