The need for software testing comes from the fact that no matter how skilled the developers are, mistakes can happen in design, coding, or integration. Testing ensures these issues are caught before the software reaches users.
Here are the main reasons software testing is necessary:
1. Detect and fix defects early
2. Ensure software quality
3. Improve reliability
4. Enhance user satisfaction
5. Maintain security
6. Meet compliance and standards
7. Reduce risks
8. Support maintainability