On 02/05/2013 08:36, David Moner wrote:
> Hi,
>
>
>
> Exactly, that was one of the original ideas, at least add that RM 
> version information at the archetype header. As you say, that only 
> indicates the version used to create the archetype and not the 
> compatibility with other versions of the RM (forward or backward). 
> That could be even added also as metadata: rm_compatibility = 
> <"openEHR-RM_1.0.0", "openEHR-RM_1.0.1">
> Since we can have all the RM versions loaded at the tools it should be 
> quite easy to check the validity towards all of them automatically.

I would suggest we don't include this list in the archetypes themselves, 
because it can easily change as more testing is done - and that would 
mean reversioning and releasing archetypes as this happens - even though 
nothing has changed in the archetype. So I would suggest we need to 
conceive of some functions in a registry service that provides this 
information.

>
>
>
> For me those visualization characteristics are more about preferences 
> of each tool/user. So it's fine for me to separate them in a different 
> place, where they can be modified without changing the model itself, 
> whose definition should remain immutable.

maybe 'tool preferences' is the way to go..

>
> That, said, I must say that we are not big fans of BMM :-)
> While we agree that current alternatives (i.e XMI) are not usable in 
> practice nowadays, we find extremely improbable that BMM gains big 
> acceptance outside the openEHR world. I doubt that we ever see the HL7 
> CDA model expressed in BMM for example. So we decided to support it as 
> another option, but we still hope that the industry finds a way to 
> agree on a common usable format for defining models.
>

well, as I said earlier, I built it over a weekend because none of the 
current options were palatable. I still don't see a clear better 
solution than BMM to our current model interop needs - today. My feeling 
is that something may emerge out of Ecore that can be usable. Right now, 
I am not sure still that it is semantically powerful enough.

- thomas

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