- •The weakest link in risk assessments is hazard identification/scenario definition.
- •Existing methods, such as HAZOP and FMEA, do not guarantee completeness.
- •Attempts to semi-automate HAZOP on plant do not seem to be fully satisfactory.
- •Only a system approach can provide completeness on plant, people, and procedures.
- •New possibilities are reviewed including an operational use of HAZID results.