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System Safety, 2008 3rd IET International Conference on

Date 20-22 Oct. 2008

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Displaying Results 1 - 25 of 55
  • Unmanned Air Systems Some Safety Management Challenges

    Publication Year: 2008
    Click to expandAbstract | PDF file iconPDF (47411 KB)  

    Unmanned Aircraft technology continues to mature. UAS are already big business for the military and breakout into civil operations is progressively occurring. Some novel Safety Management challenges - "Senses & Avoid", in particular, remains a major challenge (and presents considerable potential opportunities for transfer to manned flight environment?). ?? Light UAS is the biggest growth a... View full abstract»

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  • Confidence in System Safety

    Publication Year: 2008
    Click to expandAbstract | PDF file iconPDF (15165 KB)  

    Safety is a property of Sociotechnical Systems not of software - We should set the system boundary where the dependence on assumptions is minimised and most certain ?? We should reduce functionality and use our best designers to make the system as simple as possible ?? We should ?? build safety cases from claims about system properties, not about rates of failures ?? rely on evidence from analysis... View full abstract»

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  • Development of an Intelligent System for Railway Risk Analysis

    Publication Year: 2008 , Page(s): 1 - 6
    Click to expandAbstract | PDF file iconPDF (6835 KB)  

    This article describes the development of an intelligent system for railway risk analysis using fuzzy reasoning approach (FRA) and fuzzy analytical hierarchy decision making process (Fuzzy-AHP), which is specially designed and developed for the railways. In the system, FRA is employed to estimate the risk level (RL) of each failure event in terms of failure probability (FP) and consequent severity... View full abstract»

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  • Safety-Critical Shortage

    Publication Year: 2008 , Page(s): 1 - 4
    Click to expandAbstract | PDF file iconPDF (2248 KB)  

    Safety-critical software is playing an ever growing role in everyday's life. Whether it is in civil or military airplanes, space systems, over-ground or underground railway systems, nuclear power plants, or air traffic management systems, safety-critical software helps us and protects us. The events at the beginning of the century and the growing level of interconnectedness among these systems are... View full abstract»

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  • Explosion Protection : Risk Assessment & Hazard Management in Manufacturing

    Publication Year: 2008 , Page(s): 1 - 6
    Click to expandAbstract | PDF file iconPDF (5718 KB)  

    With increasing pressures from an array of legislation and regulations, manufacturing organisations must today make a proactive effort in the development of health and safety policies and procedures. This paper explores a selection of issues encountered in modern system safety, with particular reference to explosion protection. Since 1974, when the Health and Safety at Work, etc. Act was introduce... View full abstract»

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  • Evidence-Based Development - Applying Safety Engineering Techniques to the Progressive Assurance and Certification of Complex Systems

    Publication Year: 2008 , Page(s): 1 - 6
    Click to expandAbstract | PDF file iconPDF (5487 KB)  

    This paper presents evidence-based development (EbD), an approach to progressive system assurance that is confidence-based and deeply integrated with the development process. EbD draws inspiration from requirements management, risk management, and from the claim-evidence-argument paradigm well known in the safety engineering domain. The ideas are applied not just to safety, but to the broader conc... View full abstract»

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  • Automotive Telematics System for Safe Driving

    Publication Year: 2008 , Page(s): 1 - 6
    Click to expandAbstract | PDF file iconPDF (2460 KB)  

    To deter dangerous driving, we recently proposed an automotive telematics system, which displays safe driving points and rankings to a driver in real time. In this study, we tried to enhance the effectiveness of the system by adding an individual or team competition. Effect measurements of these functions were carried out on a driving simulator using a between-subjects design under three condition... View full abstract»

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  • Combining Safety and HCI Arguments to Increase Confidence in Information-Only Systems

    Publication Year: 2008 , Page(s): 1 - 6
    Click to expandAbstract | PDF file iconPDF (137 KB)  

    Whilst the argument for equivalent levels of rigour being applied to Safety and Human Computer Interaction (HCI) in defence, is generally well recognised, it is the authors opinion and experience that this is rarely the case and this could be due to the lack of guidance and collaboration between HCI and Safety guidance and communities. This paper will compare the confidence levels defined in Def S... View full abstract»

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  • Estimating the Accuracy of Opposing Left-Turn Potential Conflict Model Via Programming in MATLAB

    Publication Year: 2008 , Page(s): 1 - 5
    Click to expandAbstract | PDF file iconPDF (1712 KB)  

    According to accident statistics for selected intersections in Tehran, Iran, head-side accident occurring at intersections assign the major part of the reported accidents in compare to the other types of reported accidents. Analyzing the accident reports, indicate that the opposing left-turn accidents conclude the significant part of head-side accidents. Hence, developing a method for analyzing an... View full abstract»

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  • Design of Systematic Safety Program Based on Work-Group

    Publication Year: 2008 , Page(s): 1 - 5
    Click to expandAbstract | PDF file iconPDF (5766 KB)  

    Safety management is a huge and complicated system engineering which is related to 4M elements of man, machine, media and management. The approach of management includes 3E of engineering, education and enforcement. The Procedure of the system is composed of hazard identification, risk evaluation, hazard control and emergency management which itself includes prevention, preparation, response and r... View full abstract»

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  • Investigating the Use of Argument Modularity to Optimise Through-Life System Safety Assurance

    Publication Year: 2008 , Page(s): 1 - 6
    Click to expandAbstract | PDF file iconPDF (5218 KB)  

    Safety cases are now regularly used to communicate the argument about the achievement of acceptable levels of safety for safety critical systems. Increasingly, safety standards such as Defence Standard 00-56 require the scope of the safety case to cover not only the development of the system, but also operating and maintenance through life, including decommissioning. This involves two dimensions o... View full abstract»

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  • A Design Process for Constructing a User Interface Pattern Library for Touch-based Applications in Safety-Critical Environments

    Publication Year: 2008 , Page(s): 1 - 3
    Click to expandAbstract | PDF file iconPDF (5250 KB)  

    This poster shows the stages of development of a user interface pattern library for touch-input devices for safety-critical environments. The process emerged from several projects, one in air traffic control and three in railway operations. View full abstract»

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  • Developing and Maintaining Competence - Experiences from the Rail Industry

    Publication Year: 2008 , Page(s): 1 - 6
    Click to expandAbstract | PDF file iconPDF (4581 KB)  

    Competence plays a very important role in controlling risks - especially in degraded and emergency situations where it is often the actions of people which are critical in returning the system to a 'normal' state. This paper draws on experiences in the UK rail industry where organisations have been required to have formal 'competence management systems' for safety critical work for many years. Rai... View full abstract»

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  • Improving Safety by Enhancing Technical Competence Management

    Publication Year: 2008 , Page(s): 1 - 6
    Click to expandAbstract | PDF file iconPDF (1029 KB)  

    This article presents the skyguide technical competence management model as an answer to the requirements the Swiss ANSP shall satisfied. This model is the basis for the ATSEP certification as required in ESARR5 and based on a key concept called Required Knowledge and Skills (RKS). This concept represents the ATSEP competence, and is supported by a BQR training model. This paper ends with a brief ... View full abstract»

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  • Using Data from Simulation Training in Modelling Emergency Response Outcome

    Publication Year: 2008 , Page(s): 1 - 6
    Click to expandAbstract | PDF file iconPDF (2591 KB)  

    Simulations fulfilling the UKOOA requirements to train and validate competence in emergency management for the offshore industry may provide organisations with valuable information. This paper describes a methodology to plan simulations for data capture. Following this, the task performance resource constraint model is used to integrate the information provided by simulation and other research stu... View full abstract»

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  • The Incompetence of Competency Assurance

    Publication Year: 2008 , Page(s): 1 - 6
    Click to expandAbstract | PDF file iconPDF (2770 KB)  

    The competence of people operating, maintaining and managing safety-related and safety-critical systems is a key factor in their safe operation. Assuring that appropriate, effective and robust processes for competence and performance assessment are in place has been an ongoing cause of concern for operators and regulators, alike. Traditional approaches are unable to capture and assess the impact o... View full abstract»

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  • An Environment for Testing Safety-Critical Protocols

    Publication Year: 2008 , Page(s): 1 - 6
    Click to expandAbstract | PDF file iconPDF (3168 KB)  

    This paper presents an environment for fault injection based testing of protocols that implement fault tolerance and redundancy management in safety-critical distributed realtime systems. Building confidence in the correctness of distributed protocols is an intrinsically difficult problem that requires the use of complementary testing and verification techniques. To this end, we propose a verifica... View full abstract»

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  • Circuit Fault & Failure Description Language

    Publication Year: 2008 , Page(s): 1 - 5
    Click to expandAbstract | PDF file iconPDF (1685 KB)  

    In this paper, we aim at formalising an experimental fault and failure description language in order to design a safety verification process for circuits. We would like to extend methods and techniques which check that circuits are design fault free, e.g. they correctly behave in normal mode, in such a way that circuits could be statically verified as well when unexpected failures arise, e.g. in d... View full abstract»

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  • The Pace Towards Protocol-Independent Safety Requirements for Serial Buses in the Automotive Environment

    Publication Year: 2008 , Page(s): 1 - 6
    Click to expandAbstract | PDF file iconPDF (111 KB)  

    This paper highlights the application of protocol-independent safety requirements in the functional safety assessment process of automotive bus systems such as CAN and FlexRay. Issues regarding a targeted alignment with IEC 61508 and related standards are identified. View full abstract»

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  • Model Based Requirements Elicitation

    Publication Year: 2008 , Page(s): 1 - 5
    Click to expandAbstract | PDF file iconPDF (5374 KB)  

    Despite the advances in high integrity software development there remains the problem of adequately specifying the requirements for a safety related system. This is compounded in bespoke applications. This paper describes a behavioural model based process for eliciting a requirement set covering normal and abnormal behaviour that is deterministic and verifiable. View full abstract»

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  • Implementing and Sustaining Human Reliability Programmes of Work- a Managers' Guide

    Publication Year: 2008 , Page(s): 1 - 6
    Click to expandAbstract | PDF file iconPDF (5001 KB)  

    Over the past few years, human reliability has had considerable experience of applying qualitative risk assessment techniques in a range of organisations. Our observation is that, once the commitment has been made to undertake this type of work, its ultimate success depends, to a large degree, on how certain organisational issues are managed. Drawing on our practical experience, this paper is desi... View full abstract»

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  • The Operator or the Automation: In Whom Should We Place Ultimate Trust?

    Publication Year: 2008 , Page(s): 1 - 6
    Click to expandAbstract | PDF file iconPDF (1565 KB)  

    This paper investigates the conflict between two competing safety philosophies. According to one philosophy, dangerous system states should be explicitly prevented through system design. According to the alternate philosophy, human operators should be the final arbiters of safety. These principles come into conflict in situations where any attempt to prevent the system entering an unsafe state may... View full abstract»

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  • The Role of Human Factors in Planning for Nuclear Power Plant Decommissioning

    Publication Year: 2008 , Page(s): 1 - 6
    Click to expandAbstract | PDF file iconPDF (1658 KB)  

    As increasing numbers of nuclear power plants (NPPs) worldwide reach the end of their useful life, careful and systematic planning for decommissioning has become increasingly important. Reports on previous experience of decommissioning tend to focus on the technical issues rather than the human factors that are fundamental to, and can significantly affect, the success of the decommissioning proces... View full abstract»

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  • Characteristics of Human Behaviour in Safety-Critical Systems by the Example Of European Railway Control Centres

    Publication Year: 2008 , Page(s): 1 - 6
    Click to expandAbstract | PDF file iconPDF (1940 KB)  

    This paper attempts to explain behavioural patterns of signallers, emergency controllers, and other users in railway control centres by analysing observational record. By applying inductive reasoning it describes work patterns that have emerged in railway control centres in order to deal with high volumes of traffic and critical situations. Factors that affect human performance when interacting wi... View full abstract»

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  • Development of an Electronic Safety Case for a Military Communication, Command and Control System

    Publication Year: 2008 , Page(s): 1 - 6
    Click to expandAbstract | PDF file iconPDF (3914 KB)  

    The modern infantry soldier is expected to operate across a wide spectrum of operational scenarios from war fighting to humanitarian aid. Deployments can be National, International Single/Joint Services or as part of a coalition with other international services. Key to success in any military operation is the ability for personnel at the combat level to manage and control their environment and to... View full abstract»

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