# Question about Composition archetypes
**URL:** https://discourse.openehr.org/t/question-about-composition-archetypes/15836
**Category:** Technical (archive)
**Created:** [28 March 2006 14:38 UTC](https://discourse.openehr.org/t/question-about-composition-archetypes/15836 "2006-03-28T14:38:19Z")
**Posts on this page:** 4
**Page:** 1
### Author:  [@Mattias\_Forss](https://discourse.openehr.org/u/Mattias_Forss)
#### Post date: [28 March 2006 14:38 UTC](https://discourse.openehr.org/t/question-about-composition-archetypes/15836/1 "2006-03-28T14:38:19Z")
Hello,
I've just compared some Composition archetypes from Ocean Informatics with the specifications at openEHR.org and I have some questions. The specifications from 0.9 to 1.0 all agree about one thing for COMPOSITION classes and that is that the attribute "context" in the COMPOSITION class should point to a class called EVENT\_CONTEXT.
However, this is not the case for the archetypes I've seen so far. Instead, the "context" attribute in the archetypes matches subclasses of ITEM\_STRUCTURE e.g. ITEM\_TREE. These classes should instead be referred by an optional attribute called "other\_context" inside the EVENT\_CONTEXT class. Can anyone please explain to me why this is the case?
Regards,
Mattias
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### Author:  [@Sam](https://discourse.openehr.org/u/Sam)
#### Post date: [12 April 2006 12:27 UTC](https://discourse.openehr.org/t/question-about-composition-archetypes/15836/2 "2006-04-12T12:27:59Z")
Mattias
The Ocean archetypes are still 0.97 - we have updated all of them and will have the release 1.0 tools and archetypes available very shortly.
The editor, alpha, on the Ocean site will create them in the release 1.0 form.
Cheers, Sam
Mattias Forss wrote:
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### Author:  [@Mattias\_Forss](https://discourse.openehr.org/u/Mattias_Forss)
#### Post date: [12 April 2006 19:09 UTC](https://discourse.openehr.org/t/question-about-composition-archetypes/15836/3 "2006-04-12T19:09:00Z")
Yes they are still 0.97 archetypes, but shouldn’t they contain EVENT\_CONTEXT according to the old 0.9 specifications? Anyway, I’m glad that the release 1.0 archetypes are being published soon. I’ve had a look at some of the new COMPOSITION archetypes and they seem to follow the specifications better.
Thanks,
Mattias
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### Author:  [@Sam](https://discourse.openehr.org/u/Sam)
#### Post date: [13 April 2006 08:13 UTC](https://discourse.openehr.org/t/question-about-composition-archetypes/15836/4 "2006-04-13T08:13:55Z")
I hope they are perfect! Sam
Mattias Forss wrote: