title: Business Layer in 3 tier Architecture
body: <p>I went for an interview, and was asked to show up my Business layer architecture. I have some idea about 3 tier architecture but really no idea, to what to write in front of interviewer.
  So suppose my project deals with Employees of an organization, then what would i have written there. Will it be any kind of diagrams i should have made or some coding part. I worked in C# framework 3.5. I really don't understand what else to mention in this question, so please let me know if something is required.Thanks.</p>
  
  <p><strong>Edit</strong>
  I worked in winforms.
  I know what Business layer is, but was not sure what to tell the interviewer as business layer has codes and obviously my project was a bit big, so there were huge numbers of codes. So what i should have written there??</p>