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Systems Life Cycle: Testing. Testing. A test plan will be included in the design phase to explain exactly how the new system will be tested and the expected outcomes for each test.

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Presentation Transcript
testing
Testing
  • A test plan will be included in the design phase to explain exactly how the new system will be tested and the expected outcomes for each test.
  • Testing is important because computer software is usually very complex. Any mistakes made by the designers or programmer can have a dramatic effect depending on what the software is used for.
  • Testing helps to ensure that the system

always acts as expected.

test data
Test data
  • Usually software is tested with three distinct types of data.
    • Typical data – this is normal data the system should be working with.
    • Extreme data – this is data at the boundary between typical data and invalid data.
    • Invalid data (sometimes known as erroneous data) – this is data that should cause the system to tell the user that there is a problem with data entered into the system.
data for testing in a school database pupil s date of birth
Data for testing in a school database – Pupil’s date of birth

For each of the examples of data decide why – in our school’s database – it should be accepted or rejected.

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