title: ASP.NET Web Forms presentation architecture and patterns
body: <p>I writing an report on the three layered design architecture focusing on 
  a ASP.NET Web application. Currently i am having a simple visual studio web forms project, and I am wondering of which pattern a simple WebForm (<code>ASPX</code>, <code>ASPX.CS</code>, <code>ASPX.DESIGNER.CS</code>) presentation is using, like ASP.NET MVC uses the MVC pattern?</p>
  
  <p>Also, in a three layered architecture, where is the user control components (<code>ASPX.CS</code>) placed? lower presentation layer or upper BLL layer?</p>