377,741 research outputs found

    Systems thinking for safety and security

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    The fundamental challenge facing security professionals is preventing losses, be they operational, financial or mission losses. As a result, one could argue that security professionals share this challenge with safety professionals. Despite their shared challenge, there is little evidence that recent advances that enable one community to better prevent losses have been shared with the other for possible implementation. Limitations in current safety approaches have led researchers and practitioners to develop new models and techniques. These techniques could potentially benefit the field of security. This paper describes a new systems thinking approach to safety that may be suitable for meeting the challenge of securing complex systems against cyber disruptions. Systems-Theoretic Process Analysis for Security (STPA-Sec) augments traditional security approaches by introducing a top-down analysis process designed to help a multidisciplinary team consisting of security, operations, and domain experts identify and constrain the system from entering vulnerable states that lead to losses. This new framework shifts the focus of the security analysis away from threats as the proximate cause of losses and focuses instead on the broader system structure that allowed the system to enter a vulnerable system state that the threat exploits to produce the disruption leading to the loss

    Safety and security in the light of complexity. Uncertainty & qualification of systems analysis

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    International audienceThere exists a field of epistemology or philosophy of complexity using contemporary scientific developments for questioning our relationship with reality, knowledge and science developments. This field is extremely stimulating and points at ways of thinking about safety science and risk management in general. This paper will elaborate on and present how the epistemology of complexity - focusing in particular in the challenge of articulating disciplines - offers concepts for tackling accident investigation and auditing of complex sociotechnical systems for at least two purposes worth discussing in light of complexity: safety and security. The discussion will be based on the presentation of Morin's "complex thought", and case studies presented in previous papers which develop these ideas but also from past and current research (since 2000) for the environmental French ministry as well as consulting works for the industry currently carried out by INERIS. This paper will therefore specifically address the issue of modelling (describing, explaining, interpreting, predicting) complex systems for safety and security purposes

    Application of Systemic Accident Analysis (SAA) Approaches in Telemedicine/Telehealth

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    This chapter discusses the importance of applying methods based on the systems thinking paradigm in analysing accidents that may occur in a complex healthcare system involving telemedicine/telehealth. Different accident analysis approaches (models and methods) have been utilised to analyse incidents/accidents in different safety-critical domains, including healthcare, to identify weaknesses and to be able to propose safety recommendations. With the advent of systemic accident analysis (SAA) approaches based on the systems thinking paradigm, can they be feasibly and practically applied to incidents resulting from unintended issues relating to telemedicine/telehealth? This chapter discusses three popular SAA approaches, benefits and limitations, including their necessity for improving safety and even security relating to telemedicine processes

    Reliability

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    This special volume of Statistical Sciences presents some innovative, if not provocative, ideas in the area of reliability, or perhaps more appropriately named, integrated system assessment. In this age of exponential growth in science, engineering and technology, the capability to evaluate the performance, reliability and safety of complex systems presents new challenges. Today's methodology must respond to the ever-increasing demands for such evaluations to provide key information for decision and policy makers at all levels of government and industry--problems ranging from international security to space exploration. We, the co-editors of this volume and the authors, believe that scientific progress in reliability assessment requires the development of processes, methods and tools that combine diverse information types (e.g., experiments, computer simulations, expert knowledge) from diverse sources (e.g., scientists, engineers, business developers, technology integrators, decision makers) to assess quantitative performance metrics that can aid decision making under uncertainty. These are highly interdisciplinary problems. The principal role of statistical sciences is to bring statistical rigor, thinking and methodology to these problems.Comment: Published at http://dx.doi.org/10.1214/088342306000000664 in the Statistical Science (http://www.imstat.org/sts/) by the Institute of Mathematical Statistics (http://www.imstat.org

    Global drivers, sustainable manufacturing and systems ergonomics

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    This paper briefly explores the expected impact of the ‘Global Drivers’ (such as population demographics, food security; energy security; community security and safety), and the role of sustainability engineering in mitigating the potential effects of these Global Drivers. The message of the paper is that sustainability requires a significant input from Ergonomics/Human Factors, but the profession needs some expansion in its thinking in order to make this contribution. Creating a future sustainable world in which people experience an acceptable way of life will not happen without a large input from manufacturing industry into all the Global Drivers, both in delivering products that meet sustainability criteria (such as durability, reliability, minimised material requirement and low energy consumption), and in developing sustainable processes to deliver products for sustainability (such as minimum waste, minimum emissions and low energy consumption). Appropriate changes are already being implemented in manufacturing industry, including new business models, new jobs and new skills. Considerable high-level planning around the world is in progress and is bringing about these changes; for example, there is the US ‘Advanced Manufacturing National Program’ (AMNP)’, the German ‘Industrie 4.0’ plan, the French plan ‘la nouvelle France industrielle’ and the UK Foresight publications on the ‘Future of Manufacturing’. All of these activities recognise the central part that humans will continue to play in the new manufacturing paradigms; however, they do not discuss many of the issues that systems ergonomics professionals acknowledge. This paper discusses a number of these issues, highlighting the need for some new thinking and knowledge capture by systems ergonomics professionals. Among these are ethical issues, job content and skills issues. Towards the end, there is a summary of knowledge extensions considered necessary in order that systems ergonomists can be fully effective in this new environment, together with suggestions for the means to acquire and disseminate the knowledge extensions

    Towards resilience through systems-based plant breeding. A review

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    How the growing world population can feed itself is a crucial, multi-dimensional problem that goes beyond sustainable development. Crop production will be affected by many changes in its climatic, agronomic, economic, and societal contexts. Therefore, breeders are challenged to produce cultivars that strengthen both ecological and societal resilience by striving for six international sustainability targets: food security, safety and quality; food and seed sovereignty; social justice; agrobiodiversity; ecosystem services; and climate robustness. Against this background, we review the state of the art in plant breeding by distinguishing four paradigmatic orientations that currently co-exist: community-based breeding, ecosystem-based breeding, trait-based breeding, and corporate-based breeding, analyzing differences among these orientations. Our main findings are: (1) all four orientations have significant value but none alone will achieve all six sustainability targets; (2) therefore, an overarching approach is needed: “systems-based breeding,” an orientation with the potential to synergize the strengths of the ways of thinking in the current paradigmatic orientations; (3) achieving that requires specific knowledge development and integration, a multitude of suitable breeding strategies and tools, and entrepreneurship, but also a change in attitude based on corporate responsibility, circular economy and true-cost accounting, and fair and green policies. We conclude that systems-based breeding can create strong interactions between all system components. While seeds are part of the common good and the basis of agrobiodiversity, a diversity in breeding approaches, based on different entrepreneurial approaches, can also be considered part of the required agrobiodiversity. To enable systems-based breeding to play a major role in creating sustainable agriculture, a shared sense of urgency is needed to realize the required changes in breeding approaches, institutions, regulations and protocols. Based on this concept of systems-based breeding, there are opportunities for breeders to play an active role in the development of an ecologically and societally resilient, sustainable agriculture

    Challenges in food safety as part of food security : lessons learnt on food safety in a globalized world

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    Food safety should accomplish food and nutrition security. A key challenge to scale up food safety globally is to better leverage existing capacity and research working towards evidence-based decisions. At Ghent University since 2009 an annual 3-months international Intensive Training Program on Food Safety, Quality Assurance and Risk Analysis has been organized (www.itpfoodsafety.UGent.be). The trainees were asked to express their opinion on food safety concerns in their country and to select a case study to work on throughout the course. Main food safety issues had to do with bacterial pathogens, pesticide residues and mycotoxins which were challenged by lack of food safety knowledge and appropriate legislation and enforcement by government. They welcomed education and training on these topics in particular to elaborate on control measures including good hygienic practices, implementation of certified food safety management systems and setting of appropriate criteria. A number of topics are highlighted here in particular as these topics were shown to have a common ground of interest by several participants in several countries and throughout the years. These topics include among others safety of street foods, safe milk and cheese production, and risk assessment to control Salmonella and pathogenic E. coli in meat (and other foods). Although some recurring food safety issues could be identified, other topics are of particular concern in selected countries because of specific cultural appropriate eating habits. The world is changing fast. Problems change and the information stream is very intense. Leaders in food security should be aware about food safety as well, and will have to develop an attitude of continuous learning, critical thinking and be given the right tools("know how") to develop local solutions to address the emerging societal and environmental challenges to provide sufficient, safe, healthy, nutritious and sustainable produced food to the world's population

    Terrorist attacks versus acts of illegal interference in civil aviation. Implications for the functioning of airport critical infrastructure

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    What makes the attacks on aviation transport so attractive is the fact that the act of aggression aimed at means of transport has an impact not only on the craft and vehicles themselves, but also on the critical infrastructure, the passengers, the crew and is followed by the wide interest of media due to the spectacular side of the event. The distinction between a terrorist act and illegal interference act may raise the suspicion of various implications for the functioning of critical infrastructure of an airport, first and foremost the designing of security and protection systems. As it may seem, providing safety will be adequate to anti-terrorist activities whereas the protection of civil aviation will be assigned to the prevention of acts of illegal interference. Such a course of thinking would imply the division or at least conduction of parallel actions. In practice, those areas overlap one another and widen the range of possible actions or use of certain instruments, for example legal ones. Also, the differences in prevention systems against terrorist acts and illegal interference acts are only slight

    The practice of crime prevention: design principles for more effective security governance

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    South Africa has had a comprehensive crime prevention policy agenda for some time in the form of the 1996 National Crime Prevention Strategy and the 1998 White Paper on Safety and Security. Despite this, prevention has remained very much a second cousin within the South African criminal justice family, notwithstanding the fact that there is widespread agreement that it warrants far more attention. In this article we briefly review some of the principal obstacles to effective crime prevention. Our understanding of ‘crime prevention’ is a broad one – it involves simply asking the question: How can we reduce the likelihood of this happening again? This question opens up a range of preventative possibilities. Whether they are of a socio-economic, environmental or law enforcement nature depends on the nature of the (crime) problem. On the basis of our analysis, we propose three design principles to be followed if we, South Africans are to establish crime prevention as a central focus of our security governance. These design principles articulate what might be thought of as ‘best thinking’ rather than ‘best practice’

    An Assurance Framework for Independent Co-assurance of Safety and Security

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    Integrated safety and security assurance for complex systems is difficult for many technical and socio-technical reasons such as mismatched processes, inadequate information, differing use of language and philosophies, etc.. Many co-assurance techniques rely on disregarding some of these challenges in order to present a unified methodology. Even with this simplification, no methodology has been widely adopted primarily because this approach is unrealistic when met with the complexity of real-world system development. This paper presents an alternate approach by providing a Safety-Security Assurance Framework (SSAF) based on a core set of assurance principles. This is done so that safety and security can be co-assured independently, as opposed to unified co-assurance which has been shown to have significant drawbacks. This also allows for separate processes and expertise from practitioners in each domain. With this structure, the focus is shifted from simplified unification to integration through exchanging the correct information at the right time using synchronisation activities
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