hi,
take a look at these MSDN links:
Application Design
msdn.microsoft.com/.../hh997384(v=nav.71).aspx
Business Process Walkthroughs
msdn.microsoft.com/.../hh174286(v=nav.70).aspx
Design Details: Warehouse Management
msdn.microsoft.com/.../hh997363(v=nav.71).aspx
etc,etc.
......