- Agile Modeling: http://agilemodeling.com/
Time and time again, the simplicity of using the following for prioritizing projects revolves around the following.
- Must Have
- Should Have
- Could Have
- Won’t Have this time
The following article from Agile Business goes deeper and is worth reading.
I am a big fan of this Disciplined Agile Framework. These folks have done some great work (even if a bit jargony): http://www.disciplinedagiledelivery.com/