Definitions

Definition 1

A secure level of the tranquility property where security clearance levels and security classification levels are first initialized and then cannot be modified during the overall lifecycle of the system.

This tranquility level imposes more stringent constraints on the system than weak tranquility.

A system with strong tranquility is tranquil and complies with the tranquility principle.

Note

If not specified otherwise, the tranquility property refers to both security clearance levels and security classification levels. But the concept may be applied to only security clearance levels or security classification levels, in which case it is recommended to express it explicitly.

Related Terms

Quotes

Bibliography

• Anderson, 2001

• Anderson, 2008

• Bell, 1988

See Also