HAZOP stands for Hazard and Operability Study. Which of the following is a correct expansion?

HAZOP stands for Hazard and Operability Study. Which of the following is a correct expansion?

• A. Hazard and Operability Study
• B. Hazard and Operability System
• C. Hazardous Operations and Procedures
• D. Hazardous and Operational Protocols

Answer: (A)

Hazard and Operability Study is the recognized expansion of HAZOP. This name reflects the method’s purpose: a structured, team-based analysis to uncover potential hazards and operability problems by examining deviations from the intended design in a process. The word “Study” signals an analytical review rather than a physical system or a set of procedures, and it emphasizes that the goal is to understand and mitigate risks, not to describe operations or protocols. “Hazard” covers the possible harms that could arise, while “Operability” covers issues that could prevent the process from meeting design intent or operating safely. The other options don’t fit because they replace or alter key terms—“System,” “Procedures,” or “Protocols”—which changes the meaning away from a systematic risk-identification study.

Hazard and Operability Study is the recognized expansion of HAZOP. This name reflects the method’s purpose: a structured, team-based analysis to uncover potential hazards and operability problems by examining deviations from the intended design in a process. The word “Study” signals an analytical review rather than a physical system or a set of procedures, and it emphasizes that the goal is to understand and mitigate risks, not to describe operations or protocols. “Hazard” covers the possible harms that could arise, while “Operability” covers issues that could prevent the process from meeting design intent or operating safely. The other options don’t fit because they replace or alter key terms—“System,” “Procedures,” or “Protocols”—which changes the meaning away from a systematic risk-identification study.