Stream: implementers
Topic: FHIR Model
Kumar Venkatachalam (Sep 24 2019 at 19:22):
Hi - Is the FHIR model available as an UML model for download. I could see that there are images of UML class diagrams under Individual resources. But is there a complete model available that could be downloaded and imported into a UML modeling tool like Sparxsystems Enterprise architect. This could be a XMI format or some such thing.
Thanks
Jean Duteau (Sep 24 2019 at 19:23):
No. The UML diagrams are generated programatically from the source definitions. They have been a few people interested in creating an entire UML model but it does not currently exist.
Kumar Venkatachalam (Sep 24 2019 at 19:58):
Thanks Jean. That is helpful to know, Are there at least UML files for the individual resources? When I contacted Sparxsystems to find out if they know anything about it, I got a reply that they thought that their product Enterprise architect was used in generating the UML Class diagrams shown in resource definitions but that is all they knew. Thanks again.
Jean Duteau (Sep 24 2019 at 20:06):
No, the FHIR build tooling creates UML diagrams in SVG (scalable vector graphics) format. It uses a third-party library to do this and does not use EA or any other UML tool.
Lloyd McKenzie (Sep 24 2019 at 20:15):
@Kumar Venkatachalam What are you looking to do with the UML files?
Frank Oemig (Sep 25 2019 at 06:03):
I have created a UML diagram with EA for the FHIR basics for my book, but not for the individual resources. Can provide it if of interest.
Grahame Grieve (Sep 25 2019 at 07:22):
I'm sure it's of interest. I could generate an XMI version if there was enough interest, but it has to >1 person per year
Dave Carlson (Sep 25 2019 at 15:42):
@Sean Muir has updated the MDHT import of FHIR R4 structure definitions into UML, he can provide details on where to access this XMI file from the MDHT project on eclipse.org. We do not create diagrams, but use the UML model of FHIR for other transformations including MDMI mapping.
Kumar Venkatachalam (Oct 01 2019 at 13:06):
@Lloyd McKenzie - Sorry for the late reply, had issues with login and account. Thanks, I want to bring that into a modeling tool and use it for deriving a more logical model to show the relationships etc, between the referenced resources from a given resource.
Lloyd McKenzie (Oct 01 2019 at 14:03):
Ok. Be aware that we've done the exercise of creating diagrams showing relationships in the past and the result was an ungodly mess. With extensions, everything can point to everything. Even without extensions, you'll find the diagram pretty overwhelming given that there are so many places where references occur.
Lloyd McKenzie (Oct 01 2019 at 14:04):
In general, if you're going to do a diagram, it's best to pick a single focal resource and just show its outbound relationships.
Last updated: Apr 12 2022 at 19:14 UTC
