An effective safety management system (SMS) should be able to perform successfully with respect to the following key aspects,
- Recognize harmful events and understand their likelihood
- Prevent harmful events from happening
- Mitigate consequences of harmful events (if unable to prevent altogether)
- Plan and execute responses to harmful events when they unfold
- Restoration after harmful events
See the difference in "a management" and " a management system"
"A management" can fail even if " a management system" is successful, when the management is unable to execute the "management system" they are supposed to follow.
Hence it is not only important that a correct management system is adopted but also to execute the adopted management system correctly.