Ok, there's some mistakes, but I was frankly astounded that ChatGPT (4) can even start to write DFDL schemas:

Check out:

https://chat.openai.com/share/2f5e33ed-89a9-4aa9-a9cf-f6532c57f1b7

I'd say that's a good start.

Mike Beckerle 

Apache Daffodil PMC | daffodil.apache.org

OGF DFDL Workgroup Co-Chair | www.ogf.org/ogf/doku.php/standards/dfdl/dfdl

Owl Cyber Defense | www.owlcyberdefense.com

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