Topic 9 - Techniques for testing

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Test harnesses
- software and test data which run the programming code - under different conditions - monitor output - compared against expected output - report summarised for how well the program behaved and produced accurate results
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Performance testing
- Determine how fast some aspect of a system performs under a certain workload - can demonstrate that the system meets performance criteria - compare two systems - can see what parts of the the system/workload caused issues
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Scalability testing
- ensuring the system can cope with increases in workload
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Volume testing
- ensures that when volumes become larger this can be accommodated by the program - and it will not cause the program to stop or cause poor performance
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Usability testing
- test how well people can use an ICT system for its intended purpose
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Multi platform testing
- ensure that the solution can work across various different platforms
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Portability testing
-ensuring that the solution can be transferred to specified hardware or software.
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Prototyping
- producing working versions of the ICT system -at different stages of development - given to user/client - test and evaluate any problems - allows you to match the user's needs better
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paper prototyping
- creating a paper based prototype - the user can they try this and see if they like it and are able to use it - any issues or problems are noted down and any additions can be added there and then.
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Using a stimulated environmment
- behaving as though it were being used in its actual situation - the correct number of terminals that would be used - also used to see how the system behaves when subjected to a series of controlled inputs.
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Module testing
- testing one module at a time - allows tester to focus on just one aspect - this would be signed of by client
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Integration testing
- combining modules together and then testing how they work together - this will be signed of by the client
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System testing
- testing the system as a whole and how all modules link together
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White box
- testing done by people who are familiar with the programming and the programming code
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Black box
- done by people who will never look at the programming code - they look at output produced - check that any requirements or specifications have been meet
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Alpha
- tests that are done before it's released for public use - usually performed at an in house site not normally involved with systemdevelopers
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Beta
- preliminary version of the program that is widely distributed before commercial use - often tested by heavy duty demanding users
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Functional
- Type of black box testing that the specifications of the software components
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Regression testing
- Testing that software previously developed and tested still performs correctly after it was changed or interfaced with other software.
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Card 2

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Performance testing

Back

- Determine how fast some aspect of a system performs under a certain workload - can demonstrate that the system meets performance criteria - compare two systems - can see what parts of the the system/workload caused issues

Card 3

Front

Scalability testing

Back

Preview of the front of card 3

Card 4

Front

Volume testing

Back

Preview of the front of card 4

Card 5

Front

Usability testing

Back

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