Hi Pablo, I did it a few years ago, just dumped not-current versions in
a slow XML database, because, in normal cases they are never queried,
and when they need to be queried, there can always be found a faster
solution.
But of course, this was a linear version system. ExistDB supports
distributed versioning on XML out of the box. And you can also use a
normal, not OpenEHR, version system like Git or VCL.
But when looking at how OpenEHR works, is there ever need of merging? Do
people edit concurrently same datasets? I think they are they always
working on new versions of datasets, there is only one exception, that
is the persistent Composition, there could occur merging problems.
But I think, you don't need distributed versioning to handle this, a
locking system (like databases have) is, I think, good enough. That is
how classic EHR builders handle concurrency.
Bert
On 21-06-17 03:04, Pablo Pazos wrote:
Hi all,
I had this questions in mind for a long time: did someone implemented
the distributed versioning of openEHR?
The specs define a great distributed versioning mechanism but it is a
little trickier to implement. Also there is no clear who will do the
work of managing that, and how that structure will be queried. It is
very difficult to me to think of an amendment sent to an EHR and that
not being available for all the parties looking at the EHR of the patient.
In the case of the EHRServer I built, only linear versioning is
possible, there is only one latest version for each compo, and queries
only get data from latest versions.
Just wondering, what do others did for versioning and what policies do
you have if you implemented the distributed approach in terms of
branching, merging and querying.
Thanks!
--
Ing. Pablo Pazos Gutiérrez
Cel:(00598) 99 043 145
Skype: cabolabs
<http://cabolabs.com/>
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