Most Comman Software problem

1. Incorrect calculation
2. Incorrect data edits&ineffective data edits
3. Incorrect matching and mergind of data
4. data searches that yield incorrect result
5. Incorrect processing of data relationship
6. Incorrect coding/implementation of business rules
7. Inadequate software performance
8. confusing or misleading data
9. software usablity by ebd users
10. inconsistent processing
11. unreliable result of performance