Examine custom object security settings through the context menu.
View the Security Settings for a Custom Object (Vault Professional)
You can also access the Details dialog by selecting Details from the File menu.
You can review the following information on the Security tab:
Indicates the security precedence for the custom object. The default setting is role-based security only. However, if security settings have been overridden, then the mode is set to System or overriden security and the permissions in the Access Control List (ACL) are used instead. If no permissions are defined in the ACL, then system security takes precedence.
The ACL shows which groups and users are granted access to the selected custom object and its respective permissions.