-Timely: The indicator provides inf

-Timely: The indicator provides information when needed based upon the purpose of the indicator and the needsof the intended audience.一Easy to Use: Indicators that are hard to measure or derive are less likely to be measured or less likely to bemeasured correctly.-Auditable: Indicators should be auditable to ensure they meet the above expectations.9.5 Selection of IndicatorsThere are various ways to identify the critical few indicators that can be used to drive process safety performanceimprovement.一Use process hazard evaluation and risk assessment findings to identify potential high impact events and theprocess safety barriers intended to prevent such incidents.一What can go wrong?PROCESS SAFETY PERFORMANCE INDICATORS FOR THE REFINING AND PETROCHEMICAL INOUSTRIES25- What are the consequences?-What is the likelihood?- Which are the most critical barriers?