[jones1618]

It's odd that he incidentally refers to "architecture" a couple of times but doesn't include that in the hierarchy. I'd put architecture above models because it defines not just how your models are partitioned and connected but how they communicate. Also, good architecture isn't an answer to here-and-now requirements but anticipates how an entire system might need to adapt to _future_ requirements.

[thecupisblue]

If your structures are good, your architecture is provided out of the box.