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