You can map Lotus Notes for z/OS short names and Novell Directory Services for OS/390 (NDS) user names to RACF® user IDs. NDS and Lotus Notes for z/OS can determine the RACF user ID for a user who has been authenticated with an application user identity or a digital certificate. Once the application determines a user's RACF user ID, it might choose to use this identity for authorization checking when accessing traditional system resources, such as data sets. This allows your installation to maintain existing functions, resources, and security while consolidating application servers.