ISO/IEC 27035 Introduction Training — Lesson 4: Preparing for Post-Incident Review, Metrics, Exercises, and Improvement

Learning Objectives

• Interpret the purpose, responsibilities, inputs, and decision points shaping preparing for post-incident review, metrics, exercises, and improvement.
• Apply the workflow and produce incident lessons and improvement report that another practitioner can review.
• Analyze “a recurring incident closes without verifying corrective action” and recommend a proportionate, evidence-based response.

Detailed Topics

• post-incident review
• root-cause analysis
• incident metrics
• exercise programme
• lessons learned
• corrective action
• control improvement
• maturity review
• Governance, competence, communication, documentation, validation, risk, and follow-up considerations

Instructor Demonstration

The instructor demonstrates the preparing for post-incident review, metrics, exercises, and improvement workflow, identifies applicable responsibilities, records checkpoints in incident lessons and improvement report, and contrasts the accepted state with a condition where a recurring incident closes without verifying corrective action.

Hands-On Exercise

Complete a controlled implementation, management, audit, assessment, foundation, introduction, awareness, or transition exercise for Preparing for Post-Incident Review, Metrics, Exercises, and Improvement. Establish scope and criteria, collect or create evidence, examine “a recurring incident closes without verifying corrective action,” reach a supported conclusion, and preserve the result in incident lessons and improvement report.

1. Confirm objectives, scope, roles, criteria, stakeholders, and expected outputs.
2. Perform the planned activities while recording assumptions, evidence, and decisions.
3. Test a normal case, an exception, and a follow-up or improvement condition.
4. Document conclusions, owners, due dates, escalation, and verification requirements.

Scenario Analysis

• Identify the requirement or principle with the strongest influence on preparing for post-incident review, metrics, exercises, and improvement.
• Compare two defensible responses and explain their governance, risk, and evidence trade-offs.
• Determine how the incident lessons and improvement report should be approved, retained, reviewed, and updated.

Troubleshooting Guidance

Separate missing evidence from ineffective practice, and distinguish a documentation issue from a control, process, governance, or competence failure. Use incident lessons and improvement report to trace the earliest divergence. Treat “a recurring incident closes without verifying corrective action” as a hypothesis until the response is validated against the applicable requirement and intended outcome.

Validation Checklist

• The scope, criteria, stakeholders, and intended outcome for preparing for post-incident review, metrics, exercises, and improvement are explicit.
• The incident lessons and improvement report links statements and decisions to objective, reviewable support.
• Responsibilities, competence, communication, risk, legal duties, and change impact were considered where relevant.
• Findings, corrective actions, monitoring, review triggers, and improvement ownership are clear.

Lesson Outcome

Learners can apply Preparing for Post-Incident Review, Metrics, Exercises, and Improvement, explain the reasoning used, and defend the result through incident lessons and improvement report.