# Package com.sas.lsaf.security.principal

Class definitions for manipulating and identifying principals in the system. See the `GroupService` for methods that use principals in the system.

- Interface Summary
  Interface | Description
  --- | ---
  Principal | A principal is either a user or a group that is defined in the system.

- Exception Summary
  Exception | Description
  --- | ---
  PrincipalNotFoundException | Thrown when the specified principal can not be found in the system.