In the health field (a fine example of complex systems) we use an "Ubiquitous language" to describe models using the ADL (Archetype Description Language) language. This language is defined by the openEHR standard, which provides a number of tools for documentation and model discussion among domain experts.
This is specific to the health area, but I believe it is a great template for what you are looking for.
You can find material on language specification and models under development at link
You'll also find the models under development at link
I'm not a specialist in Eric Evans's theories, but I believe there's a lot of adherence to what was proposed by Sam Heard and Thomas Beale.
Here is a short article I wrote about developing archetypes:
Methodological Development of Archetypes
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