about Enterprise user cal and functional user cal

Can somebody help me about Axapta 2012 licence?
Can somebody explain Enterprise user cal and functional user cal to me?


I tried to explain AX 2012 licensing in this blog post.

The difference between Enterprise and Functional CAL is only in the fact that users with Enterprise CAL have access to more functionality than users with cheaper Functional CAL. There used to be (I’m not sure if it’s maintained) a list of menu items for each CAL; you can also generate such a list from AX metadata. It’s also useful the check which roles requires Enterprise or Functional CAL.

Nevertheless it’s not easy to summarize all features that Enterprise users can use and Functional users can’t.

Thank you so much