Definitions for "Discretionary access control"
Check the validity of credentials given at the discretion of the user (e.g., username and password).
As set by the administrator or resource owner, allows some users to access a resource or perform an action while preventing other users from doing so.
Restricts access to objects based on identity and/or group membership. The controls are discretionary in the sense that a user with a certain access permission (for example, an object owner) is capable of passing access permission on to any other user, such as with the grant command.