n-layer

What are the main advantages of MVC pattern over the old fashioned 3-layer pattern

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The separation of concerns that’s quoted as being an advantage of MVC is actually also an advance of a 3-layer/3-tier system. There too, the business logic is independent and can be used from different presentation tiers. A main difference is that in classic MVC the model can have a reference back to the view. This … Read more

Onion vs. N-Layered Architecture

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Adding facades are really the first step in building an onion architecture out of an n-layered architecture. So, yes, you can get many of the benefits right away. Testing is still problematic as you need to invert the dependency control. Controlling what has the facade is pointing to needs to move to the consumer, not … Read more

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