When should you deviate from HAZOP-O?

You should consider deviating from HAZOP-O when the process or system being analyzed is highly novel or atypical, rendering standard guide Words less effective. Additionally, if the team identifies that the complexity or scale of the process exceeds the traditional HAZOP scope, alternative methodologies may provide clearer insights. Finally, if the specific safety or operational concerns require a more tailored approach, it may be prudent to adapt the HAZOP framework accordingly.