Onion architecture

Jeff seems to have put it very well in his blog. Much better than I did myself back in December 2006 when I blogged about my “Onion” idea.

My mistakes were
01: I was missing a domain services layer.
02: I tried to explain it using a specific example (wizard app with a “process stack” aka “task stack”), and later decided I didn’t like the example 🙂
03: When I drew my diagrams I showed them as a typical stacked diagram, because my graphics skills are crap 🙂

Here’s my badly put idea of onion layered applications:

Here’s Jeffrey’s

Well done Jeff, very nicely put!


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