Modules and subsystems

[gparmeggiani]

in the Visualizing Software Architecture book, there's a section about modules and subsystems.

If the concept of components and modules, or systems and subsystems, is useful, then feel free to build that into the shared vocabulary that you create.

I'm aware of the terminology DSL keyword, but how to describe these 2 other layers? Can groups be used as a zoom-in element?

[simonbrowndotje]

Can groups be used as a zoom-in element?

Not with Structurizr. You might want to look at https://likec4.dev if you need more levels of zoomable abstraction.