the paper presents a system of systems approach to tackle the air quality planning problem through a multi-objective optimization methodology. In this contextthe different axes of the air quality planning issue (econ...
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the paper presents a system of systems approach to tackle the air quality planning problem through a multi-objective optimization methodology. In this contextthe different axes of the air quality planning issue (economic, environmental, social) are described and modeled in a unique framework and in an integrated/systemic way allowing for the selection of policies that optimally consider the three aforementioned perspectives. In the formalization of the proposed system approach two objectives are optimized: the Air Quality Index (related to health effects due to high concentrations of secondary pollution, environmental and social impacts of the problem) and the Cost Of Policy Index (related to the cost of emission reduction implementation, and so modelingthe economic dimension). A case study for a Northern Italy domain is shown and discussed, stressing how a multi-Air Quality Index framework has to be developed to manage conflicting objectives.
Designing in an interdisciplinarycontext is challenging, and it is even more so when it has to be done remotely. For such remote interdisciplinary designing, we propose video prototypes as artifacts for supporting th...
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Designing in an interdisciplinarycontext is challenging, and it is even more so when it has to be done remotely. For such remote interdisciplinary designing, we propose video prototypes as artifacts for supporting the interaction design process. In this paper, we present a case study where we have successfully used video prototypes for collaboratively designing a modeling tool. this tool is supposed to provide Dialogue Design Support for creating multimodal user interfaces. the new and important aspect of this case study was using video prototypes for joint interactive designing done remotely, and also between disciplines.
In this study, we introduce an approach about how to model energy and power consumption of embedded systems running operating system (OS). the embedded OS provides an abstraction layer to applicative tasks through sys...
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In this study, we introduce an approach about how to model energy and power consumption of embedded systems running operating system (OS). the embedded OS provides an abstraction layer to applicative tasks through system calls to exploit the hardware device resources. We interest in characterizing the energy overhead of the embedded OS services. the remainder of this article details the approaches used to determine energy and power overheads of a set of basic services of the embedded OS: scheduling, context switch and inter-process communication. We analyze the impact of a set of parameters like processor frequency and scheduling policy on the energy consumption. then, we extract models and laws of these overheads. In our experiments, the hardware platform used is OMAP35x EVM board running Linux omap as operating system.
this paper reviews existing military capability models and the capability life cycle. It proposes a holistic capability life-cycle model (HCLCM) that combines capability systems with related capability models. ISO 152...
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this paper reviews existing military capability models and the capability life cycle. It proposes a holistic capability life-cycle model (HCLCM) that combines capability systems with related capability models. ISO 15288 standard is used as a framework to construct the HCLCM. the HCLCM also shows how capability models and systems relate to each other throughout the capability life cycle. the main contribution of this paper is conceptual in nature. the model complements the existing, but still evolving, understanding of the military capability life cycle in a holistic and systemic way. the model also increases understanding and facilitates communication among various military capability stakeholders.
While the general concept of “Privacy-by-Design (PbD)” is increasingly a popular one, there is considerable paucity of either rigorous or quantitative underpinnings supporting PbD. Drawing upon privacy-aware modelin...
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While the general concept of “Privacy-by-Design (PbD)” is increasingly a popular one, there is considerable paucity of either rigorous or quantitative underpinnings supporting PbD. Drawing upon privacy-aware modeling techniques, this paper proposes a quantitative threat modeling methodology (QTMM) that can be used to draw objective conclusions about different privacy-related attacks that might compromise a service. the proposed QTMM has been empirically validated in the context of the EU project ABC4Trust, where the end-users actually elicited security and privacy requirements of the so-called privacy-Attribute Based Credentials (privacy-ABCs) in a real-world scenario. Our overall objective, is to provide architects of privacy-respecting systems with a set of quantitative and automated tools to help decide across functional system requirements and the corresponding trade-offs (security, privacy and economic), that should be taken into account before the actual deployment of their services.
Computational Grids are a promising platform for executing large-scale resource intensive applications. However, resource management and scheduling in the Grid environment is a complex undertaking as resources are geo...
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Computational Grids are a promising platform for executing large-scale resource intensive applications. However, resource management and scheduling in the Grid environment is a complex undertaking as resources are geographically distributed, heterogeneous in nature, owned by different organizations withtheir own policies, have different access and cost models, and have dynamically varying loads and availability. Dynamic pricing and good level of Pareto optimality make auctions more attractive for resource allocation over other economic models. the Capital Asset Pricing Model (CAPM) holds the equilibrium relationship between the expected return and risk on an investment. In this context, it is worthwhile to investigate the communication demand or complexity of auction protocols in Economy Grid environments. this work proposes CAPM Auction for resource allocation in Grid environment.
In today's aircrew training context, although there is an abundance of training systems that can enhance training and reduce costs, the challenge for the military training organizations to select the most cost-eff...
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In today's aircrew training context, although there is an abundance of training systems that can enhance training and reduce costs, the challenge for the military training organizations to select the most cost-effective training systems to address their immediate and future needs is unresolved. the urgency of this dilemma is exacerbated by shrinking defense budgets. this paper shows how the systems engineering perspective can help the decision-making process for selecting the training media equipment to construct a cost-effective training media environment. A multidisciplinary approach and systems engineering techniques were used to develop a theoretical model of the Mission Training Environment arrangement. Implications of the approach, such as that the training environment can be viewed as a system of systems and that the choice is based on combination of equipment, will be discussed.
Model-based systems engineering is a discipline of systems engineering where a model forms the heart of all the systems engineering activities and is the basis of many of the project artefacts. Systems modelling is no...
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Model-based systems engineering is a discipline of systems engineering where a model forms the heart of all the systems engineering activities and is the basis of many of the project artefacts. Systems modelling is no longer viewed as simply a `good idea' but is, however, increasingly become an essential part of any systems engineering project. Indeed, this is the start point for the EU FP7 project known as COMPASS (Comprehensive Modelling for Advanced Systems of Systems) that has funded this research. the application of model-based systems engineering is becoming well understood at the systems level, however, there is a lack of research and subsequent industrial application at the system of systems (SoS) level. the main aim of the COMPASS project is to provide an approach for SoS including: processes, tools and new modelling techniques. this paper discusses how a model-based systems engineering approach was developed for requirements engineering that could be applied to both system of systems (SoS) and its constituent system (CS) level. this approach would meet the requirements of current best practice in system of systems in terms of established standards and research.
Systems of systems typically contain many technical systems but also span across and affect different legal and economic entities (e.g., companies, public bodies, etc.). the economic entities are involved in exchanges...
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Systems of systems typically contain many technical systems but also span across and affect different legal and economic entities (e.g., companies, public bodies, etc.). the economic entities are involved in exchanges of goods, services and value. To develop an envisioned or to understand an existing system of systems, systems engineers should also be able to model and analyze these value exchanges and the business interactions related to them. Business interactions are strongly related not only to the requirements on the systems of systems, but also on the systems within them. In this paper we propose to use business models, business process models and value network models to analyze business interactions in the context of systems engineering, and to elaborate how they can be related to requirements. We examine our proposal on an example system of systems: a smart grid.
Airport systems stands for one of most important and essential asset within the transport system of a country. the air transport liberalization has promoted the air traffic growth with a consequential cost reduction t...
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Airport systems stands for one of most important and essential asset within the transport system of a country. the air transport liberalization has promoted the air traffic growth with a consequential cost reduction to the passengers and air carriers. In turn, this growth is moving the main airports towards the saturation, affecting the performance and quality of the services provided to the passengers. Some analyses, indeed, foresee that the capacity of the airports, in the management of the aircrafts and passengers, will likely be the bottleneck of the air transport growth. Hence, airport capacity needs to be improved. the common and agreed view for succeeding to this goal moves to the optimization and orchestration of the available resources within the airport. To do that, the interoperability and cooperation among stakeholders, operating in the airport, often with different purposes, has to be rethought, along withthe development of novel technological systems enabling and supporting this process. To this aim, the paper proposes a new framework that enabling the information interoperability on the top of classic data interoperability among heterogeneous stakeholders (often legacy systems) operating both in airside and landside area and provides a net-centric orchestration service capable of forecasting and promptly optimizing the choices of the stakeholders withthe aim addressed to the airport performance as a whole.
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