Lifecycle you’ll follow in every lab

1. Read the ticket → clarify scope, risk, success criteria.

2. Pre-change snapshot → backup config/screens; note current state.

3. Implement → GUI/CLI with small, reversible steps.

4. Validate → functional tests + security checks; collect logs/metrics.

5. Document → what changed, why, evidence, and a backout plan.

Grading rubric (typical)

• Correctness (60%)

• Validation evidence (20%)

• Safety/backout (20%)