Uniform User ID across organization

This requirement calls for assigning a single user id to a physical user, regardless of which system the user accesses. This is desirable for several reasons, the most important being the ability to maintain strong passwords. However, this may be quite difficult to achieve. For instance, co-existence of legacy and open systems requires different ways of handling authentication and is not the same in all cases. In some cases, disparate systems can still be consolidated under a single user authentication system using Single Sign On (SSO). A user might logon to the Company network running Microsoft Windows. The database users can be LDAP users created by the clause “identified externally”. This allows all three systems – domain, email and database to have the same user id and password, i.e. the same authentication system.