UAMS is designed to provide a fully self-contained system for user security. It allows you to define user IDs for each user of your regions. User IDs provide logon and password checking and can be added, deleted, or updated.
You can use UAMS to define:
UAMS by itself is independent of any external security system. For example, passwords stored in UAMS are not synchronized with RACF.
A single UAMS data set can be shared by any number of regions.