# The debugging checklists

- [ ] Is the problem being reported a direct result of the underlying bug, or merely a symptom?
- [ ] Is the bug really in the compiler? Is it in the OS? Or is it in your code?
- [ ] If you explained this problem in detail to a coworker, what would you say?
- [ ] If the suspect code passes its unit tests, are the tests complete enough? What happens if you run the unit test with this data?
- [ ] Do the conditions that caused this bug exist anywhere else in the system?