title: What's the difference between property Entity Reference and property in Entity Data Model?
body: <p>I have three tables structure like following</p>
  
  <pre><code>AppUser             User                App              
  *********           ******              ******
  AppUserId           UserId              AppId
  UserId
  AppId 
  </code></pre>
  
  <p>UserId and AppId of Table AppUser is foreign keys to table User and App. When I generate <strong>3 tables to Entity Data Model, it has three class AppUser, User as well as App</strong>. However, I don't uderstand <strong>AppUser.UserReference and AppUser.User</strong></p>