In this paper, the protection coverage area of a security system is considered. The protection coverage is determined by applying the protection model of security systems, which is brought forward according to Neyman-Pearson Criterion. The protection model can be used to define the protection probability on a grid-modeled field. The security systems deployed in a guard field are regarded abstra...

In electronic business environment, it is critical for an enterprise to assess information systems security (ISS) risks. In this paper we propose an evidence theory and rough sets based approach to objectively represent uncertainty inherent in the ISS risk assessment. Uncertainty in security risk management stems from the incompleteness and vagueness of the conditioning attributes that characte...

background: the use of chemicals is essential in education resulting in exposure to these pollutant in a variety of chemical and research laboratories. chemical contaminants in chemical laboratories are in different forms and chemical exposure risk assessment is important for choosing appropriate controls in protecting the health of operators, experts and students. for risk assessment in chemic...

Precursor analysis, the evaluation of “near misses,” has been an activity of the Nuclear Regulatory Commission for almost twenty years. One item that has remained constant over this time is that the focus of the analysis has been on modeling the scenario using a risk model and then utilizing the results of the analysis to determine the severity of the precursor incident. The investigation of pr...

Tool Support for Software Performance Risk Assessment Archana Radhakrishnan The Software Architecture Risk Assessment (SARA) tool is a utility to compute and analyze different architectural risk factors of software architecture modeled using Unified Modeling Language (UML). The different architectural risk factors are maintainability, requirements, reliability, and performance. The problem repo...

For the risk assessment of flood defense, a comprehensive understanding factors affecting dike failure is essential. Traditional methods are mostly based on experts’ experience and focus just one type mode defensive structures. The resources, including analytical non-analytical factors, were summarized firstly according to general dikes. uncertainty resources that affect safety can be quantifie...

in the process of investment decision making, next to financial indicators many other aspects of investment projects are increasingly often considered. this leads to the multi-criteria evaluation of a project. the advantage of multi-criteria methods is the ability to take into account all (not only financial) aspects of the attractiveness of an investment project. the selection of criteria of p...

conclusions managers and service providers need to know an ordinary woman’s perception of risk to address the gap between current and desired childbirth services and encourage women to use current hospital services. objectives this study explains how baloch women make decisions regarding the risks associated with childbirth at home versus a hospital. this study identifies and defines the factor...

introduction: nowadays ionizing radiation has a considerable contribution in medical diagnostic and treatment. using ionizing radiation is increasing rapidly, so biological effects of ionizing radiation should be considered more. x-rays in the range of diagnostic radiology have hazardous effects and risks that are defined as random effects. these effects obey the lnt hypothesis that occur at lo...