title: Model layer MVC and the difference between 3-Tier architecture and MVC
body: <p>I am trying to figure out the difference between MVC and 3-tier architecture. I know that MVC, in big applications, applies to the presentation tier of 3-tier architecture:</p>
  
  <p>If I'm right, what's the difference between the Model layer of MVC and the Logic tier of 3-tier Architecture?</p>