Question about JSF ManagedBean in part 2

[Madhu Maniganta]

Hi All Ranchers,
I recently passed the SCEA part 1 and and working on part 2, I have a question about showing "controller and managed beans" in class and sequence diagrams.

Can I have my class diagram with just the controller (and no managed beans) like jsp--->generic controller(faces servlet in the comments)-->session bean ?
and in my sequence diagram jsp-->managed beans-->session bean, is this acceptable? Should I show managed beans in my class diagram? Is my assumption that Controller of JSF is different from Managed beans. Please clarify.

Thanks,
Madhu.