5,020 research outputs found

    Augmenting Cyber Defender Performance and Workload through Sonified Displays

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    AbstractMilitary cyber operations occur in a cognitively intense and stressful environment, and consequently, operator burnout is relatively high when compared to other operational environments. There is a distinct need for new and innovative ways to augment operator capabilities, increase performance, manage workload, and decrease stress in cyber. In this study, we assessed how a sonified display could address these requirements. Sonification has been demonstrated to be a useful method for presenting temporal data in multiple domains. Participants in the experiment were tasked with detecting evidence of a cyber attack in a simulated task environment modeled after “Wireshark,” a popular packet analyzer program. As they completed the task, participants either did or did not have access to a redundant sonified display that provided an auditory representation of the textual data presented in Wireshark. We expected that the sonified display would improve operator performance and reduce workload and stress. However, our results did not support those expectations – access to the sonification did not affect performance, workload, or stress. Our findings highlight the need for continued research into effective methods for augmenting cyber operator capabilities

    A BIM-based PSS approach for the management of maintenance operations of building equipment

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    The service-centered economy has grown considerably in the last few years, shifting from product-based solutions towards service centered offerings, i.e., Product-Service System (PSS) solutions. Such an approach is also emerging in the context of building equipment, where maintenance activities play a fundamental role in facility management. In this field, Building Information Modeling (BIM) based tools are diffusely used to improve the performances of facility management. However, few studies have addressed the above issues while considering a shift from product-based approaches in favor of more advanced servitization models. The study aims at integrating BIM based approaches in a PSS context for the improvement of the management of maintenance operations of building equipment. A general framework for maintenance management has been developed, merging the implementation of the PSS components in a BIM model for the definition of maintenance management. A first application of this methodology to a real case study concerning the elevators of an existing building has shown the efficacy of the proposed approach. The study highlighted the benefits that can be achieved, especially in terms of reduced periods of equipment unavailability, reduced costs and augmented customer satisfaction, while enhancing the information exchange between the PSS actors. Hence, although further research is still needed for its validation, the proposed approach can offer practical insights for the development of promising BIM-based PSS solutions for facility management in the construction industry

    Optimizing The Design Of Multimodal User Interfaces

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    Due to a current lack of principle-driven multimodal user interface design guidelines, designers may encounter difficulties when choosing the most appropriate display modality for given users or specific tasks (e.g., verbal versus spatial tasks). The development of multimodal display guidelines from both a user and task domain perspective is thus critical to the achievement of successful human-system interaction. Specifically, there is a need to determine how to design task information presentation (e.g., via which modalities) to capitalize on an individual operator\u27s information processing capabilities and the inherent efficiencies associated with redundant sensory information, thereby alleviating information overload. The present effort addresses this issue by proposing a theoretical framework (Architecture for Multi-Modal Optimization, AMMO) from which multimodal display design guidelines and adaptive automation strategies may be derived. The foundation of the proposed framework is based on extending, at a functional working memory (WM) level, existing information processing theories and models with the latest findings in cognitive psychology, neuroscience, and other allied sciences. The utility of AMMO lies in its ability to provide designers with strategies for directing system design, as well as dynamic adaptation strategies (i.e., multimodal mitigation strategies) in support of real-time operations. In an effort to validate specific components of AMMO, a subset of AMMO-derived multimodal design guidelines was evaluated with a simulated weapons control system multitasking environment. The results of this study demonstrated significant performance improvements in user response time and accuracy when multimodal display cues were used (i.e., auditory and tactile, individually and in combination) to augment the visual display of information, thereby distributing human information processing resources across multiple sensory and WM resources. These results provide initial empirical support for validation of the overall AMMO model and a sub-set of the principle-driven multimodal design guidelines derived from it. The empirically-validated multimodal design guidelines may be applicable to a wide range of information-intensive computer-based multitasking environments

    Application of design principles for assembly instructions – evaluation of practitioner use

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    Production complexity causes assembly errors due to that the demands on the operators are high and there is a need to improve assembly instructions. Design principles for Information Presentation (DFIP) is a method developed to support such improvement and its application was evaluated in three case studies, 152 practitioners. Results indicate that DFIP use help simplifying the information presentation so that complexity can be reduced, and that step 4 is easiest to understand. In addition, the implementation of assembly instructions gave positive results

    improving a production site from a social point of view an iot infrastructure to monitor workers condition

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    Abstract In the context of Industry 4.0, this paper focuses on integration of workers in the digitalized factory. It proposes a method to design an IoT infrastructure and acquire human-related data from a production site in order to improve workers wellbeing and overall productivity. The method permits to identify bottlenecks and criticalities from a social point of view, focusing on the human performance, and define corrective actions at different levels (operations, plant layout or shift management). A case study was developed in collaboration with an Italian sole producer to validate the method and the related data acquisition system

    Aviation Automation and CNS/ATM-related Human-Technology Interface: ATSEP Competency Considerations

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    Abstract The aviation industry has, no doubt, undergone profound transformations ever since the first powered aircraft flight on December 17, 1903. An especially noticeable aspect of the transformations is in the area of automation. Remarkably, aviation operations are becoming increasingly automated and it is expected that the wind of change sweeping through the industry will be getting stormier as new technologies emerge especially within the context of the emerging prospects of intelligent technologies, which may ultimately enthrone complete automated or technology-based intelligent decision making. Perhaps, in no sphere of the aviation system has there been, in recent times, a much more lively and sustained exhibition of the spirit of automation than in the realm of communications, navigation, surveillance/air traffic management (CNS/ATM). This scenario, invariably, imposes far-reaching obligations on and have wide-ranging implications for air traffic safety electronics personnel (ATSEP) – the ICAO-recognized nomenclature for personnel involved and proven competent in the installation, operation, and/or maintenance of a CNS/ATM system. This paper explores, based on a systematic review of extant literature, the concept of aviation automation in the context of the broader conceptual and theoretical underpinnings of automation and with an emphasis on automated CNS/ATM systems. The primary aim is to examine the implications of an automated CNS/ATM environment on aspects relating to the roles, tasks, competence, and training of ATSEP within the framework of the safety-criticality of air traffic management. Based on arguments regarding ATSEP competency considerations in the context of an automation-rich CNS/ATM environment, a conceptual model of ATSEP competencies and a model of competency-based, human-technology ATSEP task flow are proposed

    WESTT (Workload, Error, Situational Awareness, Time and Teamwork): An analytical prototyping system for command and control

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    Modern developments in the use of information technology within command and control allow unprecedented scope for flexibility in the way teams deal with tasks. These developments, together with the increased recognition of the importance of knowledge management within teams present difficulties for the analyst in terms of evaluating the impacts of changes to task composition or team membership. In this paper an approach to this problem is presented that represents team behaviour in terms of three linked networks (representing task, social network structure and knowledge) within the integrative WESTT software tool. In addition, by automating analyses of workload and error based on the same data that generate the networks, WESTT allows the user to engage in the process of rapid and iterative “analytical prototyping”. For purposes of illustration an example of the use of this technique with regard to a simple tactical vignette is presented

    The Adaptive Automation Design

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    Doing augmented reality: a discourse analysis

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    Since its emergence in the 90s, augmented reality has been referred to as the superimposition of virtual objects on the view of the physical world, and holds a promise to fundamentally change the way we interact with the digital universe. However, AR was never able to achieve such objectives, and after the Google Glass Experiment in 2013, what is evident is a conflict between the research visions and consumer expectations. Seeing that reality is done through discursive practices and enactments, this thesis examines how AR is done by those who are involved in its development, its promotion and its use, through textual and discourse analysis, aiming to understand the vision behind its development. We first analyse the emergence and development of AR, following with the analysis of the Google Glass Experiment, as a materialization of the technology. Taking into consideration the potential for behavior and lifestyle change held in AR development, understanding the underlying discourses and visions is of crucial importance as we bring technology to our reality. As a result we have a better assessment of the current technology situation as well as insights for future development and solutions in the field of augmented reality.Desde o seu surgimento nos anos 90, a realidade aumentada (RA) tem sido referida como a sobreposição de objetos virtuais na visão do mundo físico, e tem consigo a promessa de mudar fundamentalmente a maneira como interagimos com o universo digital. No entanto, a realidade aumentada nunca foi capaz de atingir tais objetivos e, após o Google Glass Experiment em 2013, o que fica evidente é um conflito entre as visões da pesquisa e as expectativas do consumidor. Vendo que a realidade se faz por meio de práticas e decretos discursivos, esta tese examina como a RA é construída por aqueles que estão envolvidos em seu desenvolvimento, sua promoção e seu uso, por meio da análise textual e do discurso, com o objetivo de compreender a visão por trás de seu desenvolvimento. Analisamos primeiro o surgimento e desenvolvimento da RA, seguindo com a análise do Google Glass Experiment, como uma materialização da tecnologia. Levando em consideração o potencial de mudança de comportamento e estilo de vida no desenvolvimento de RA, entender os discursos e visões subjacentes é de importância crucial à medida que trazemos a tecnologia para nossa realidade. Como resultado, temos uma melhor avaliação da situação atual da tecnologia, bem como percepções para o desenvolvimento futuro e soluções no campo da realidade aumentada
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