Appendix A. Software tests
Industrial software quality

Depending on the choice of life cycle, these stages may vary slightly in content and chronology, but the principle remains the same. The stages are as follows.

• Validation tests

  These tests verify the software's functionality, interfaces, performance and correct operation. They check that the software meets the expressed needs, and that it fits correctly into its environment.

  The validation test is not concerned with the software's internal structure.

• Software integration testing

  These tests verify the software architecture. They check that the software components communicate correctly with...