what is the difference between 3 tier architecture and a mvc?

Question

what is the difference between 3 tier architecture and a mvc ?

Are they same?

Both have 3 layers i.e model, views and controller

Answer 1

Their are similar in a way, like:

• 3 tier divides the whole app in: UI, logic and data
• MVC divides the UI part in: view (kind of UI of the UI), model (data) and controller (logic)

But the difference comes from how the tiers communicate with each other:

• 3-tier: anything goes through the logic tier (a->b, b->c and c->b, b->a)
• MVC: they communicate 2 by 2, in a triangular way. (a->b, b->c, c->a)