I have been recently tasked with writing several business cases for our division.  The problem is I haven't written a business case in over 15 years, and truthfully I don't remember how to even get started.  I have done some searching on the web, but haven't found anything that has been helpful.  I would appreciate any insights to what is needed, and how best to get started.  I'm not trying to reinvent the wheel just get this task done as quickly and as easily as possible.  Any suggestions or helpful tips are greatly appreciated.  Thanks, Elliot