title: 3 Tier Architecture vs 2 Tier Architecture
body: <p>What are the examples where we really need 3 Tier Architecture ? Can Most of the Application which are using 3 Tier Architecture be done using 2 Tier Architecture ?</p>
  
  <p><strong>Note:</strong> I am trying to see value of 3 Tier Architecture, I feel most of the application that there are 3 tier right now can be done in 2 tier and so I am looking for examples where we absolutely need 3 tier and there is no exception to that need. </p>