What-If Analysis/Checklist Analysis

The What-If/Checklist Analysis technique combines the creative, brainstorming features of the What-If Analysis method with the systematic features of the Checklist Analysis method. The purpose of a What-If/Checklist Analysis is to identify hazards, consider the general types of incidents that can occur in a process or activity, evaluate in a qualitative fashion the effects of these incidents, and determine whether the safeguards against these potential incident situations appear adequate. Frequently, the hazard evaluation team members will suggest ways for reducing the risk of operating the process.
Reference: Lees’ Loss Prevention in the Process Industries & CCPS: guidelines for hazard evaluation procedures, third edition
Technical Tools/Hazards Identification/Scenario-Based Hazard Evaluation Procedures