SIIM Roadmap
Step 2. Incident analysis and lessons learned 
The second primary objective of SIIM is to use lessons learned after a safety- or security-related incident to implement follow-up action and prevention strategies. The purpose is to understand what happened and use this understanding to plan and implement any necessary changes and procedures that will help to prevent the same kind of incident from happening again or lessen the impact of similar incidents or events. This usually occurs at country/headquarters level shortly after the safety- or security-related incident has occurred.
SIIM Handbook
Classification of incidents
Tools and Resources