Dictionary · Certification Terminology
Troubleshooting Methodology
Practice · Beginner
A repeatable order for solving a problem: identify it, establish a theory, test the theory, make a plan, verify the fix, and document the result.
Skipping to random changes wastes time and hides the cause. The method makes you say what you think is wrong, test that idea, and write down what worked.
Picture it
Say what is wrong, state a theory, test that idea, plan the change, confirm the result, and write down what worked. A reboot can be a test. It is not the whole method.
Example: A technician confirms the symptom, theorizes a bad cable, swaps one cable, verifies the link, and notes the closet port in the ticket.
Common misconception
- Rebooting can be a test, but it is not the whole method. You still need to know whether the problem stayed gone and why.