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Testing (Alpha, beta and final testing (Final test (Product is released…

- - - - Placing sections in code
      - Making larger sections of code smaller
      - Improving names for variables and custom functions
    - - Maintainability
        
        Makes bug fixing easier
      - Extensibility
        
        Makes adding new features esaier
  - - - This is done until the program does the minimum to pass a test
        
        This piece of code is refactored until it meets acceptable standars
- - - - individual set of instructions or steps in which the user might use the software.
    - - Used in order to know why the test failed and why it did
    - - Used to track changes in the development of software
      - Enables to go back and make changes in case of errors
    - - Carried out by the customer
      - Its purpose it to check that the system works as intended
      - Has to be cleared in advance
- - - - What are they used for?
        
        Make sure the system only allows 'sensible' data to be entered
      - What do they prevent?
        
        If data isn't "sensible", the computer can:
        
        Produced irrational results
        
        Crash
    - - What are they used for?
        
        Clarify that the program is woriking as intended and producing the expected outputs
  - - - What does it do?
        
        Look at a specific function within a program
        
        Checks if the software does what it was intended to do by checkin a list of its functions
      - What is its purpose?
        
        See if all of the system or units of work tin the way they are intended to
    - - What does it do?
        
        Look at how a program performs for various users or scenarios
      - What types of them exist?
        
        Load test
        
        testing how well the system does if accessed by many users
        
        Volume test
        
        testing if the software can handle large amounts of data
        
        Performance test
        
        testing how quickly the software can perform tasks
        
        security test
        
        testing fo nauthorised access
- - - - Data that should fail
    - - Data that fails but is nearly acceptable
    - - Unusual, extreme or unexpected data
        
        ex: Highest and lowest
    - - Wrong data type
    - - Data that should work
  - - - a value or condition that is expected to be true when a program is being executed.
      - Used in bug fixing
- - - - They contain the conditions the software will be tested with