“… It enables designers to develop larger and more complex systems and make the process of working with larger more complex…”

If the core of the model is Abstract / Thematic | Real/ Concrete and Analysis / Research | Synthesis / Prototyping, you could frame any problem or method in this context. You could place any decision from thought to production in this format. I.e, I am thinking about making Mac and Cheese — Looking for a recipe, considering my previous preferences, understanding new things I might wanna try, blending the two to make my final decision that is enacted in the real world.

This is still at the core an abstract mental model, and not a defined process in the real world. But at the least it helps generate a path that you can then construct more defined processes along.