I am new to OpenEHR and still learning about its specifications. Sorry for asking question already written in the docs. Suppose that I have a time-series of plasma glucose values (store as an instance of Laboratory result archetype, which is event-type Observation) within an EHR of a particular pat…

Welcome to the community. It’s not easy to get started on openehr and concepts like templates. I’m fairly new to openehr as well but I expect others to correct me if I tell you something wrongly. All data commited (stored) to the EHR (patient file) is stored as a COMPOSITION. A template (form) is …

I’m a medical practitioner and have some experience in object-oriented programming and relational database. I’m trying to think of OpenEHR in terms of OOP and I found OpenEHR is very OOP-like. In the usual OOP, multiple objects can have reference, which is stored in its property/field, to another s…

[image] s_pralomram: result (or any observation) need to be stored in some template, it cannot be “floating” in database by itself (like an OOP object that stayed in the heap). And if another template want to get this lab result, it needs to query th Welcome pralomram! that is right:-) COMPO…

Can AQL statements be stored in another template (other than a template that stores the OBSERVATION in question itself) to be used autometically to query that OBSERVATION when that template is queried? If not, is there a way multiple templates link to a single OBSERVATION?

[image] s_pralomram: stored in another template (other than a template that stores the OBSERVATION in question itself) to be use not really, please consider the COMPOSITION as a self contained document. AQL is a query statement and thus it is not intended to be stored in a template. The COMP…

[image] joostholslag: All data commited (stored) to the EHR (patient file) is stored as a COMPOSITION. Pretty close! This diagram from the EHR IM spec might make it easier to visualise. This overview information on templates might be helpful. Also this part from the Architecture Overview . T…

Yes are on the right track!! We cannot store/define the AQL inside the template , as such since this is really a data persistence definition, so the the use of AQL to pull through the existing lab results from another source needs to be documented as a separate implementation guide. We probably do …

THe explanations from @thomas.beale and @luis_marco are much better than mine but [image] luis_marco: For beginning it may help to think about templates as you think in XML Schemas. I agree this is helpful but it can lead people into thinking that either the data is stored as XML (which it i…

Thank you for your support. I appreciated answers of you all. It seem that the practice of referencing other objects from a template is not frequently used, or not quite recommended, in the OpenEHR realm. Maybe my design itself is problematic. Could you recommend how to redesign a database in the…

What we (and ehrbase? https://github.com/ehrbase/ehrbase ) do is store a composition as a json structure per db field. And use a Java library (that we opensourced: https://github.com/openEHR/archie ) to parse the json so that you can work with the data in Java. @pablo also built some nice stuff to ge…

Reference to the same observation/entry from different templates

Specifications

joostholslag (Joost Holslag) 4 December 2020 06:23 15

A how to (on links) would be very interesting to me. For some pointers have a look at the expert replies to my question on linking in this topic: Linking in openEHR: goals and problems

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Reference to the same observation/entry from different templates

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