IBM Tivoli Access Manager (TAM) is an authentication and authorization solution for corporate web services, operating systems, and existing applications.
[1][2][3] Tivoli Access Manager runs on various operating system platforms such as Unix (AIX, Solaris, HP-UX), Linux, and Windows.
In 2002, IBM acquired Access360 software, which it planned to integrate into Tivoli Access Manager.
The policy enforcer component directs the request to the authorization service for evaluation.
Access Manager authorization decisions are based upon the Privilege Attribute Certificate (PAC), which is created for each user authenticated in an Access Manager environment, regardless of the authentication mechanism used.