Hi,
MVC and 3-tier architecture both are different aspects, If both are same then why Microsoft introduce MVC architectural design pattern? that is first question right..
Both the architecture is different both the functional calling is different, 3-tier we are calling UI->BAL->DAL where as in MVC it is different it's like Model to View and View to Controller and controller to view in same way model to controller and controller to model.
So, no need to think whether MVC is 3-tier or N-tier, it's different for both the architecture.
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Give respect to your work, Instead of trying to impress your boss.
N@veen
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