Categories of Defects:

 All software defects can be broadly categorized into the below mentioned types:

 • Errors of commission: something wrong is done
• Errors of omission: something left out by accident
• Errors of clarity and ambiguity: different interpretations
• Errors of speed and capacity

 However, the above is a broad categorization; below we have for you a host of varied types of defects that can be identified in different software applications:

1. Conceptual bugs / Design bugs
2. Coding bugs
3. Integration bugs
4. User Interface Errors
5. Functionality
6. Communication
7. Command Structure
8. Missing Commands
9. Performance
10. Output
11. Error Handling Errors
12. Boundary-Related Errors
13. Calculation Errors
14. Initial and Later States
15. Control Flow Errors
16. Errors in Handling Data
17. Race Conditions Errors
18. Load Conditions Errors
19. Hardware Errors
20. Source and Version Control Errors
21. Documentation Errors
22. Testing Errors