Testing

Testing

1. is process to find errors

2. core principles in testing are

   • tests should be traceable to customer requirements
   • planned long before testing begins
   • begin in small and progress toward testing in the large.

3. Software testing process

   • Unit Test(Component Level testing)
     • White Box testing
       • checks the internal structure, logic, data
     • black box testing
       • checks the operations and functions
   • Integration testing
     • group of dependent components
       • Design and construction of software architecture
       • Interfaces and interactions between them
   • System testing
     • test whole system software
       • focus areas
         • functions and performance
         • reliability and recoverability
         • installation
         • behavior in the special conditions
         • System user operations
         • Hardware and software integration
         • Integration of external software