Global settings affect how work enters the system and how the system appears to other users.
Think of system values as company policy. System values apply to everyone using the system, unless something more specific, such as a user profile, overrides the system value. System values allow you to customize many characteristics of your system, including system security characteristics. For example, you can define how many signon attempts to allow at a device, whether the system automatically signs off inactive workstations, how long passwords can be used and changed, and other password characteristics.