Help with roles

[antprado <antprado@cisco.com>]

Title: Help with roles

(I did post this question to the software portion of the list also, my apologies if you seeing this in redundancy)
Hi,
I am being in contact with LDAP for the first and I do need to create a role for some users.
Do you have any points or how to do this?
What I need to do:

role: ==> administrator 
                 user: admin001
role:==> developer
                  user: dev001
                   user: dev002
role: ==> it
                  user: operator001
                   user: operator002

I did create these accounts under fedora already.

I need to create a role also for certain directories: for example:     /home/bug  ==> for developer
                                                                                                                     /home/operations ==> for it
                                                                                                                      /home ==> for administrator


Thank you all for your help