Question: v3 development resources


I am attempting to develop an implementation of the hl7v3 standard in PHP (specifically the CDA messaging portion) for MU2 certification.  I have been searching various sites and have downloaded the RIM specs (  My problem is the mif seems to be somewhat proprietary, and the UML versions won’t open in any UML tool that I have tried (all error out).  Where can I get a decent view of the models / model structure so that I can create a useful and meaningful implementation (so far the RIM.png is all I can find)?


You need the full v3 specification, which includes a number of processible resources – at least, that is, what’s possible to provide given the way v3 works.

You can get it here:

Seriously, the MIF is your best option. Sure, it’s proprietary (more than somewhat) – but that’s what there is. And there is a MIF for CDA. See more about the MIF here:

But why do all this? for CDA? It’s just overkill – all stuff you ain’t ever going to need. Just do CDA – it’s about 2 orders less complex than all of v3. Like building a bulldozer so you can plant a single flower….  Use the schema, and go from there.


One Comment

  1. Nathaniel says:

    Thank you for the help. I will consider not killing the fly with the sledgehammer.

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