Risk analysis and assessment

Special models and programs are developed for such purposes as health and safety management and assessment, risk analysis and assessment, emission control and detection and quality control. Such a program may, for example, help the user to keep records regarding training, chemical inventories, emergency response plans, material safety data, sheet expiry dates and so on. 

Presented system consists of several modules, each connected with different aspect of functional safety analysis. There is a hazard identification and analysis module, which generates the risk scenarios and descriptions of safety-related functions. Next module is risk analysis and assessment, which allow determining required SIL for each safety function. The last... 

Second part, related to the risk analysis and assessment, is based on risk graph method. The module consists of database storing risk parameters for each kind of saved graph and its description too. Its architecture is shown on Fig. 8. 

The approach for dependable requirements engineering (DRE) is the joint result of research within requirements engineermg, systems modeling (mainly based on object-oriented, semi-formal and agent-oriented modeling methodologies), dependability analysis and model-based failure and risk analysis and assessment (Thunem 2003, 2004, 2006). The four main aspects of the method are ... 

Integrating fanlt and risk analysis and assessment into the system development process and thus requirements engineering, so that faults and risks are associated with the dependability-critical requirements... 

Therefore, Part I of this text focused primarily on the development of system safety, its military connections, the importance of including system safety requirements in contract acquisitions, the criticality of obtaining management commitment in support of the system safety effort, the process of risk analysis and assessment, probability theory and statistical analysis as they relate to system safety, and— perhaps of most value— how the fundamental principles of system safety are closely related to those of occupational safety and health management. 

This chapter deals with flood risk analysis and assessment. The conceptual model source pathway receptor consequence for flood risk analysis is presented and its components are analyzed. The methodology to extract the predicted probability of coastal flooding from risk sources and pathways, as well as the expected damages from risk receptors axe introduced and examined. Reliability analysis of a coastal system is also briefly discussed. Quantitative methods to define acceptable flooding probabilities on the level of the protected area are presented. Tools such as cost-benefit analysis, utihty models, and the life quality index are introduced to define the tolerable risk of flooding. 

An important element in risk analysis and assessment is the possibility to use different types... 

Marhavilas, P.K., Koulouriotis, D. Gemeni, V. 2011. Risk analysis and assessment methodologies in the work sites On a review, classification and comparative study of the scientific literature of the period 2000-2009. Journal of Loss Prevention in the Process Industries, 24(5) All-523. 

Melnick, Edward L, og Brian S. Ever. Encyclopedia of quantitative risk analysis and assessment. Wiley, 2008. Merkhofer, Miley W. Quantifying Judgemental Uncertainty Methodology. IEEE transactions on systems, man and cybernetics, 1987 741-752. 

The proposed possibiUstic model of failure risk analysis and assessment of water supply network is an alternative to the classical methods and models and should be used when possessed knowledge of risk factors is uncertain or incomplete. 

Whilst some comparative experimental evidence on the effectiveness of techniques such as testing and fault tolerance is available [FAA 1982 Knight and Leveson 1986b], the assessment, measurement and prediction of the contribution of formal methods to safety is a subject largely unresearched. There are two major reasons for this. First, there is very little experiment data. This is because there are relatively few instances of use of formd methods for safety-critical systems and even in these cases there is no systematic data collection [Bowen and Stavridou 1992]. But perhaps more fundamentally, quantitative evidence is sometimes perceived as inappropriate for qualitative improvement techniques such as formal methods. The two major schools of thought concerning risk analysis and assessment, qualitative and quantitative, are often at odds with each other. The quantitative school believes that probabilities are primarily reflections of the actual frequency of events, thus are objective and can be used for pr ictions of future events. 

Hallikas, J., Virolainen, V.-M., and Tuominen, M. (2002). Risk analysis and assessment in network environments A dyadic case study. International Journal of Production... 

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