I've been developing an abstract version of the platform definition in the background, mostly reverse-engineered from the REST API, in order to capture the pure call semantics (i.e. without HTTP protocol effects, JSON or XML serialisation etc), and in that I proposed two interfaces, one for ADL14 and one for ADL2, which seems a clearer approach to me - see here <https://www.openehr.org/releases/SM/latest/docs/openehr_platform/openehr_platform.html#_definition_package>. This might be helpful in determining the separation we want.

- thomas


On 15/02/2018 13:09, Pieter Bos wrote:
I noticed the recent version of the REST api  only works with templates, and 
not archetypes.

As our EHR is ADL 2 only, this has some interesting consequences.

Of course, you can upload just the operational templates and probably create a 
fully functional EHR, but if you work with ADL 2, you would always need an 
external tool to create the OPT2 from the ADL repository that you want to use, 
instead of an EHR that generates the OPT2s from the source archetypes itself. 
Of course, you could just use the ADL workbench or the Archie adlchecker 
command-line utility to do it for you, but I’m not sure if it’s a nice thing to 
do.

Also if you only use OPT2, you might want to do queries such as ‘retrieve all 
information that is stored in an EHR that has been derived from archetype with 
id X, including archetypes specializing from X’ (not just operational template 
X). An example: retrieve all reports, or all care plans, regardless of the used 
template. To do that, you probably need a specialization section in the OPT2, 
which according to the specs should have been removed, and you also need to 
create operational templates for archetypes that you never use to directly 
create compositions from. Or the tool querying the EHR must be fully aware of 
the full archetype specialization tree and use that to create a query with all 
specializing archetypes included in the query.

So, is it intended that the REST API only works with operational templates, and 
never archetypes?

Regards,


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