Usability
- Is it fit for purpose?
- Measures the capacity the application has to meet its users needs.
- Hailway testing to look for show-stoppers.
Accessibility
- Accessibility testing is a subset of usability testing.
- Where the users under consideration have disabilities that affect how they use the application.
- The goal, in both usability and accessibility , is to discover how easily people can use a website and feed that information back into improving feature designs and implementations.
Performance Load Testing
- Simplest form of performance testing.
- Understand the behavior of the system.
- Expected concurrent number of users on the applications.
- Performing a specific number of transactions within the set duration.
- Response times of all the important business critical transactions.
- Point towards bottlenecks in the application software.
Stress Testing
- Understand the upper limits of capacity within the system.
- Determine the system's robustness in terms of extreme load.
- Helps application admin to determine if the system will perform sufficiently if the current load goes well above the expected maximum.
Soak Testing
- Known as endurance testing.
- Determine if the system can sustain the continuous expected load.
- Memory utilization is monitored to detect potential leaks.
- Performance degradation i.e. to ensure that the throughput and/or response times after some long period of sustained activity are as good as or better than at the beginning of the test.
Spike Testing
- Suddenly increasing the load generated by a very large number of users.
- Observing the behavior of the system.
- To determine whether performance will suffer, the system will fail or it will be able to handle dramatic changes in load.
Configuration Testing
- Tests are created to determine the effects of configuration changes.
- Changing the connection method on a communication port.
Isolation Testing
- Involves repeating a test execution that resulted in a system problem.
- Such testing can often isolate and confirm the fault domain.
Security Testing
- Scanning
- Vulnerability analysis.
- Penetrating test.
- Feedback
Scanning
- Network Interrogation.
- Number of hosts.
- What are the hosts?
- What services are running?
Penetration testing tools
- Metasploit
- Cain & Able
- Full disclosure
- Responsible disclosure
Scalability
- Testing of a software application for measuring its capability to scale up or scale out in terms of any of its non-functional capability.
- How do hardware and software changes affect the server performance?
Capability
- Used to find the boundaries within an application, how much can it take before things start to go wrong.
- Testing your application in a new environment.
- Corrective
- Adaptive
- Perfective
- Preventative
Supportability (Serviceability)
- Help desk notification of exceptional events.
- Network monitoring.
- Documentation
- Event logging/Tracing
- Logging of program state.
- Software upgrade.
- Graceful degradation.
Testability
- The ability in which a piece of software will respond to a given test.
- Verify the success of a service of a service restoration after a disaster.
- What happens to the workload if the system becomes unavailable.
- How long does recover take.
- How does the application cope with partial network failure.