The Importance Of Safety Engineering

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As the complexity of process increases, the ability to anticipate, monitor and measure the safety will be decreases. Since the preceding attitudes look at the cause-effects relationship to analyze safety of the system, consequently it is hard to track the connections in the socio-technical systems. Chemical process industries as an instance of these safety critical systems, must be consider this concern and search for methods that cope with this problem. This intricacy has been led to development of new approaches in the field of safety. In conventional safety and reliability engineering approaches human operators considered as a cause of operational uncertainty and the source responsible for most failures in socio-technical systems systems…show more content…
even though safety engineering have built up influential models and a comprehensive set of techniques, instruments and systems to investigate and develop organization safety, most of these methods are established based on a forced linearization of intricate systems. Consequently, these method and techniques are based in an improper perspective to handle the complexity of events that happen in contemporary systems [Sheridan, T.], [Wreathall, J.]. The resilience engineering emerged as an alternative to traditional attitude for management of safety functions in socio-technical systems. In resilience engineering approach, failure and success are both normal outcomes of how rganizations cope with unexpected in intricate scenarios. Organizations must deal with deviations in their functions, necessitate adjustment and adaptation of people activities to respond adequately to the variability and make decisions according to the finite resources and time available in order to achieve the system goals [Hollnagel E., et…show more content…
et al (2013) utilize the principal component analysis (PCA) approach combined with NT to analyze and score the resilience indicators in 11 units of a process industry. The indicators that they used to rank different units include Just culture, top awareness and opacity, management commitment, preparedness, learning culture, and flexibility. In another work Azadeh A. et al (2014) applied fuzzy cognitive maps (FCM) to assess resilience engineering factors in safety-critical systems such as petrochemical plants. They pulled out weight of resilience factors by FCM and showed that vigilance, alertness and flexibility have the most important effects on resiliency in contrary with redundancy which has the lowest weight in resiliency. Paulo Victor R.C. et al (2012) applied the concepts of resilience engineering to grasp the organization by the examination of cognitive tasks and activities. They developed of a computerized scheme to monitor human activities to turn out indicators that can demeonestrate system resilience. Although some of the published papers consider the uncertainty in the data in the field of resilience and applied the fuzzy sets to cope with this problem, but there is not a comprehensive method that while consider these deficiency, create a categorized system to analyze and rank the safety critical environments based on resilience

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