Part 5 Flashcards
(15 cards)
Is concerned with conformance to a given specification and delivery of service
Reliability
Is concerned with ensuring system cannot cause damage irrespective of whether or not it conforms to its specifications
Safety
If it is incorrect then the system can behave as specified but still cause an accident
Specification Errors
Hard to anticipate in the specification
Hardware Failures Generating Spurious Inputs
Often the result of operator error
Context-sensitive Commands issuing the right command at the wrong time
The system is designed so that some classes of hazard simply cannot arise
Hazard Avoidance
The system is designed so that hazards are detected and removed before they result in an accident
Hazard Detection and Removal
The system includes protection features that minimize the damage that may result from an accident
Damage Limitation
Is a system property that reflects the system’s ability to protect itself from accidental or deliberate external attack
SECURITY
The system is forced into a state where normal services are unavailable or where service provision is significantly degraded
Denial of Service
The programs or data in the system may be modified in an authorized way
Corruption of Programs or Data
Information that is managed by the system may be exposed to people who are no authorized to read or use that information
Disclosure of Confidential Information
The system is designed so that vulnerabilities do not occur
Vulnerability Avoidance
The system is designed so that attacks on vulnerabilities are detected and neutralized before they result in an exposure
Attack Detection and Elimination
The system is designed so that the adverse consequences of a successful attack are minimized
Exposure Limitation
