title: What are the benefits of multiple projects and one solution?
body: <p>When I was working in enterprise, we used multiple projects in the solution - projects for UI, business logic, data access, database and printing.  Now I'm in a new enterprise and the manager tells me that I don't have to make all these projects, but that I have to make them into seperate directories in one project in the solution.</p>
  <p>I just want to know if I have to convince him to use multiple projects!</p>