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This book presents an exhaustive review and evaluation of contemporary theoretical perspectives on SA and of a range of SA measurement approaches. A novel theory of DSA in complex sociotechnical systems is presented, followed by an original methodology for assessing SA and DSA in command and control environments. It contains several naturalistic case studies of command and control scenarios undertaken in numerous military domains, as well as one involving multiple high-consequence civilian domains.

Human Factors Methods and Accident Analysis is the first book to offer a practical guide for investigators, practitioners and researchers wishing to apply accident analysis methods. It is also unique in presenting a series of novel applications of accident analysis methods, including HF methods not previously used for these purposes (e.g. EAST, critical path analysis), as well as applications of methods in new domains.

Military command and control is not merely evolving, it is co-evolving. Technology is creating new opportunities for different types of command and control, and new types of command and control are creating new aspirations for technology. The question is how to manage this process, how to achieve a jointly optimised blend of socio and technical and create the kind of agility and self-synchronisation that modern forms of command and control promise. The answer put forward in this book is to re-visit sociotechnical systems theory. In doing so, the problems of 21st century command and control can be approached from an alternative, multi-disciplinary and above all human-centred perspective.

This book presents a human factors and ergonomics evaluation of a digital Mission Planning and Battle-space Management (MP/BM) system. It emphasises the activities at the Brigade (Bde) and the Battle Group (BG) headquarters (HQ) levels, with the analysts distributing their time evenly between these two locations. The book concludes with a summary of the research project's findings. It looks forward to the next generation digital MP/BM systems and in so doing considers the human factors issues in digitising mission planning.

'Complex sociotechnical systems' are systems made up of numerous interacting parts, both human and non-human, operating in dynamic, ambiguous and safety critical domains. Cognitive Work Analysis (CWA) is a structured framework specifically developed for considering the development and analysis of these complex socio-technical systems. Unlike many human factors approaches, CWA does not focus on how human-system interaction should proceed (normative modelling) or how human-system interaction currently works (descriptive modelling). Instead, through a focus on constraints, it develops a model of how work can be conducted within a given work domain, without explicitly identifying specific sequences of actions (formative modelling).

Abstract Background This paper describes a rapid response project from the Chartered Institute of Ergonomics & Human Factors (CIEHF) to support the design, development, usability testing and operation of new ventilators as part of the UK response during the COVID-19 pandemic. Method A five-step approach was taken to (1) assess the COVID-19 situation and decide to formulate a response; (2) mobilise and coordinate Human Factors/Ergonomics (HFE) specialists; (3) ideate, with HFE specialists collaborating to identify, analyse the issues and opportunities, and develop strategies, plans and processes; (4) generate outputs and solutions; and (5) respond to the COVID-19 situation via targeted support and guidance. Results The response for the rapidly manufactured ventilator systems (RMVS) has been used to influence both strategy and practice to address concerns about changing safety standards and the detailed design procedure with RMVS manufacturers. Conclusion The documents are part of a wider collection of HFE advice which is available on the CIEHF COVID-19 website (https://covid19.ergonomics.org.uk/).

The Global Positioning System (GPS) looks set to replace the traditional map and compass for navigation tasks in military and civil domains. However, we may ask whether GPS has a real performance advantage over traditional methods. We present an exploratory study using a waypoint-plotting task to compare the standard magnetic compass against a military GPS unit, for both expert and non-expert navigators. Whilst performance times were generally longer in setting up the GPS unit, once navigation was underway the GPS was more efficient than the compass. For medium- to long-term missions, this means that GPS could offer significant performance benefits, although the compass remains superior for shorter missions. Notwithstanding the performance times, significantly more errors, and more serious errors, occurred when using the compass. Overall, then, the GPS offers some clear advantages, especially for non-expert users. Nonetheless, concerns over the development of cognitive maps remain when using GPS technologies.

Filled with supporting case studies, this book demonstrates contemporary cognitive and social human factors methods that can be used to analyze individual and team performance in sport. The book presents an exhaustive review of human factors methods and points to those most compatible with sports performance. The authors detail the methods and use the case studies to illustrate their application in analyzing performance. The book focuses on data collection, task analysis, cognitive task analysis, process charting, human error identification, situation awareness measurement, workload measurement, team performance assessment, and time analysis.

The way a product or service is used and integrated into a system is often dictated by the constraints imposed in the design process. These constraints may be a result of technical limitations, cost, legal concerns, or imposed by the manufacturers to maximize future profits. This chapter uses an ecological design technique based on cognitive work analysis (CWA; Rasmussen, Pejtersen, and Goodstein 1994; Vicente 1999; Jenkins et al. 2009) to capture the constraints of the iPod and the domain in which it interacts. This constraint-based approach allows us to consider some of the constraints imposed on the product and the impact of removing them.

Cognitive Work Analysis (CWA) is a structured framework specifically developed for considering the development and analysis of complex socio-technical systems. Cognitive Work Analysis: Coping with Complexity contains a comprehensive description of CWA, introducing it to the uninitiated. It then presents a number of applications in complex military domains to explore the benefits of CWA and pays particular attention to investigating the CWA framework in its entirety.