EJB 3.1: Transactions and Exceptions

It confuses me a bit how transactions and exceptions get together in the EJB specification.
It always depends on the transaction type (CMT or BMT), the type of the bean (Session or MDB), and the type of the exception (Application or System Exception).

The O'Reilly Enterprise JavaBeans 3.1 book summarizes this into some tables. I hope that this can help you like it has helped me about how to think about the transactions and exceptions.

For Session and Entity Beans:

For MDBs: