Which practice focuses on a step-by-step approach to solving problems in software?

• A. Troubleshooting
• B. Agile development
• C. Continuous integration
• D. Performance tuning

Answer: (A)

Troubleshooting is the systematic, step-by-step approach used to diagnose why software behaves unexpectedly and how to fix it. In practice you start by reproducing the problem to observe it directly, then gather relevant information—logs, error messages, user reports, and details about the environment. You examine recent changes and configurations that could cause the issue, and compare what should happen with what is actually happening. The next move is to form a hypothesis about the root cause and test it in a safe way, often by isolating components to determine where the fault lies. Once you identify the cause, you implement a fix and verify it by re-running tests and reproducing the issue to confirm it’s resolved. Finally, you document what was learned and monitor the system to prevent recurrence. This approach matters because it provides a repeatable path from symptom to solution rather than guessing or applying fixes without confirming the underlying problem.

Other practices serve different goals. Agile development focuses on delivering software in short iterations and adapting to change, while continuous integration emphasizes automatically building and testing code whenever changes are made, and performance tuning aims to improve speed and resource use rather than diagnosing and solving a problem from first principles.