Patent ID: 7523262

Claim:
An apparatus comprising: (A) at least one processor; (B) a memory coupled to the at least one processor; (C) a global data cache coupled to the at least one processor, the global data cache including: (C1) a trusted section that includes authorization information for a user session; (C2) a protected section that includes information that may be accessed only if the user is authorized to access the information stored in the protected section; and (C3) an unprotected section that includes information that may be accessed by any user that has a valid session identifier; (D) a common session manager that stores data in the global data cache during a user session, and that invalidates the data in the global data cache after the user session is terminated; and (E) an authorization mechanism that is called by a software application to determine whether a user is authorized to access the software application, the authorization mechanism providing single sign-on capability for all software applications that access the global data cache.