On 09/05/2011 13:51, pablo pazos wrote:
> Hi Thomas,
>
> I've left a comment in your blog but is not appearing, so I comment
> your idea here.
>
> I don't think today it can be possible to have one information model
> agreed by all the medical informatics community, but I think if we can
> agree in a common metamodel like an ontology that represent the more
> generic concepts in medicine, like people, processes, resources,
> records, etc, we will be one step closer to a common IM.
yes, that's pretty much what I was suggesting.
> Because if we can agree on that ontology, all the information models
> in healthcare MUST follow the ontology, so, different information
> models can live together, but they model the same concepts
> (semantically speaking). With different models, but semantically
> equivalent, the point of convergency will be closer.
information models, at least abstract ones are in effect an ontology in
themselves: they are a description of information that either exists, or
we want to exist. So it seems reasonable that a pragmatic UML model,
with an appropriate level of abstraction can be used for just this
purpose - to describe and agree on key patterns.
If this were true, it would mean that the challenges for agreement are:
* agree on the list of patterns; I have proposed some basic ones;
your list above implies another set of candidates
o to help agreement, some kind of rating system would probably
be needed so that at least some 'core' patterns could be
agreed, even if some patterns / concepts remained beyond
agreement
* for each pattern, agree its abstract definition.
o this means defining as much of the pattern in the IM as can
be agreed, and not more.
An example of one of the patterns, modelled in UML is the 'history of
events' one here
<http://www.openehr.org/uml/release-1.0.1/Browsable/_9_0_76d0249_1109157527311_729550_7234Report.html>.
Could this or something like it be agreed across e-health for
interoperably representing the common concept of a history of events?
If sufficient patterns could be agreed, then an 'information model'
consisting of these would in effect be a 'common information model' for
the medical informatics community - whose scope is interoperable
representation of the patterns contained within.
It seems to me that this would be a great step forward.
- thomas
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