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Help on getting started with MDHT [message #1732013]

Wed, 11 May 2016 18:12

Eugene Sh

Messages: 1
Registered: April 2016

Junior Member

My team was tasked with creation of a CDA validation tool, using existing models and constraints. Once this is accomplished, we would like to move to enhancing/creating new models and introducing new constraints.

I was able to find a 2012 run-time, but I am unable to find the current one and the instructions or dev. guides to accompany it. Many links appear to be non-functional or outdated.

In order to do things properly, I would like to start from the very beginning.

I would really appreciate any help or pointers on where to look for it.

Thank you in advance!

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Re: Help on getting started with MDHT [message #1732831 is a reply to message #1732013]

Fri, 20 May 2016 14:36

Sean Muir

Messages: 64
Registered: September 2015

Member

Eugene,
The first step is to use the runtime java libraries for CDA generated by MDHT

You can download them from here https://sourceforge.net/projects/oht-modeling/files/Releases/Runtime/

We are still moving from open health tools to eclipse - so the online documentation has not caught up but you can download a version of the eclipse ice with MDHT and CDA runtimes installed here

https://sourceforge.net/projects/oht-modeling/files/Releases/Products/Analyst/

There eclipse help installed as well which has the developer documentation

As far as adding additional models and constraints - you would use the new project wizard

Thanks

Sean

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Re: Help on getting started with MDHT [message #1738305 is a reply to message #1732831]

Mon, 18 July 2016 20:28

Charles Fisher

Messages: 3
Registered: December 2015

Junior Member

Sean,

There is documentation out there showing how to consume a CCD with one of the runtimes you refer to in the first link. That is all I want to do.

When the code I am trying to follow fails with the exception "Exception in thread "main" java.lang.ClassCastException: org.openhealthtools.mdht.uml.cda.impl.ClinicalDocumentImpl cannot be cast to org.openhealthtools.mdht.uml.cda.ccd.ContinuityOfCareDocument", where is the documentation I can go to to help resolve this?

The runtime code seems extremely complex and, as was pointed out, largely undocumented. The Eclipse "ice", whatever that is, is much, much larger and, apparently, devoted to using Eclipse to generate models from which runtime code can be generated, or something like that. You suggest that buried in the zip file at that second link (I downloaded cda.analyst.product.id-win32.win32.x86_64.zip) is documentation targeted at users who just want to use an already-generated set of jar files to do some clinical document producing or consuming. Can you give us a little hint as to where that documentation might be?

Thanks

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Re: Help on getting started with MDHT [message #1755968 is a reply to message #1738305]

Thu, 09 March 2017 16:00

Dan Brown

Messages: 21
Registered: December 2015

Junior Member

I'm aware that it's been some time since the last post but in case others need help, I have a moment to help clear things up.

For the latest runtimes please use this resource instead of sourceforge:
https://github.com/mdht/mdht-models/releases
I'm not sure why you are getting the error mentioned but try the latest runtimes first and we can isolate it from there if it still exists.

I'm going to assume Eclipse 'ice' was a typo for Eclipse IDE.

We do have a good deal of documentation but some of it is outdated. It's an open source project and we welcome any one interested in contributing.

Resources:
http://cdatools.com/
Project using MDHT (which provides C-CDA Validation for SITE and TTP):
https://github.com/siteadmin/referenceccdavalidator
Specific validation resource using MDHT - see the method validateDocumentByTypeUsingMDHTApi (I wrote this method):
https://github.com/siteadmin/referenceccdavalidator/blob/master/src/main/java/org/sitenv/referenceccda/validators/schema/ReferenceCCDAValidator.java

Older documentation (most is still very useful):
https://www.projects.openhealthtools.org/sf/wiki/do/viewPage/projects.mdht/wiki/User%20Documentation

Hope that helps.

Thanks,
Dan

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