difference between Identity Manager and Access Manager

hi,Can any body tell me the difference between Identity manager and Access Manager.thanks in advanceregardsdhawanmayur
[153 byte] By [dhawanmayur] at [2007-11-26 11:56:07]
# 1
Access Manager is for access control (web authentication, authorization), Identity Manager is for identity (userid,profile,role, password etc) provision/management across multi resources (such as unix, active directory, peoplesoft, SAP) etc.
jxxe at 2007-7-7 12:15:15 > top of Java-index,Web & Directory Servers,Directory Servers...