1. System Testing
Saranya.V
AP/CSE,
Sri Vidya College of Engineering & Technology,
Virudhunagar

2. • Entire system is tested as per the
requirements.
• System testing falls within the scope of black
box testing.
• System testing is performed on the entire
system in the context of a Functional
Requirements and/or a System
Requirement Specification (SRS).

4. 1. Recovery Testing
 Forces the software to fail in different conditions
and verifies that recovery is properly performed.
 Many computer system recover from faults and
resume processing within a prespecified time.
 If recovery requires human intervention, the
Mean Time to Repair (MTTR) is evaluated to
determine whether it is within acceptable limits.

5. 2. Security Testing
 Attempts to verify that protection
mechanisms built into a system.
 Any computer based system can
manages sensitive information or
causes actions that can improperly
harm individuals is a target for
illegal penetration.
 Ex: Hackers
 Legal Penetration : authorized
system designer
 Illegal Penetration : Hacker

6. 3. Stress Testing
• Also known as “Endurance
(patience) Testing”.
• Evaluate system performance
when it is stressed for short period
of time.
• Check the program with abnormal
situations.
Stress testing situations:
• Generate 10 interrupt per second
• Increase the input rate
• Request maximum resource

7. Sensitivity Testing
• Variation of stress testing technique is
sensitivity testing
• Attempts to uncover data combinations
within valid input classes that may cause
instability processing.

8. 4. Performance Testing
• Check whether the system meets
the non functional requirements
identified in the SRS.
• Considered as “ Black Box testing”
• Test the Run Time Performance of
software
• Also coupled with stress testing.
• Required both hardware and
software instrumentation to do this
testing.