The Experts below are selected from a list of 5433 Experts worldwide ranked by ideXlab platform

Daniel Amyot - One of the best experts on this subject based on the ideXlab platform.

  • Models@run.time - Goal models as run-time entities in Context-Aware Systems
    Proceedings of the 7th Workshop on Models@run.time - MRT '12, 2012
    Co-Authors: Mira Vrbaski, Dorina Petriu, Gunter Mussbacher, Daniel Amyot
    Abstract:

    The strength of goal models is their ability to assess candidate solutions against high level criteria for many stakeholders, allowing System-wide trade-offs to be performed. We argue that, in a Context-Aware System, reasoning based on goal models can complement standard rule-based reasoning engines for decision making without involving explicit interaction with the user. While rule-based Systems excel in filtering out unsuitable solutions based on clear criteria, it is difficult to rank suitable solutions based on vague, qualitative criteria of stakeholders with a rule-based approach. The User Requirements Notation (URN) is a goal-based and scenario-based requirements modeling language that has been applied to many different domains, from reactive Systems to telecommunication standards to business processes. For Context-Aware Systems, URN's workflow notation can describe the overall behavior of a Context-Aware System and URN's goal models can further enhance reasoning about contextual situations. While URN already supports some of the interactions between workflow and goal models required for the specification of Context-Aware Systems, it does not yet fully support the modeling, design-time simulation, and run-time execution of a Context-Aware System based on its URN model. This paper (i) introduces such a modeling, simulation, and execution environment, (ii) discusses three architectural solutions for combined rule-based and goal-oriented reasoning, and (iii) reports on a URN profile that describes a domain-specific language for Context-Aware reasoning using goal-orientation with the help of an example application from the health care domain.

  • Goal models as run-time entities in Context-Aware Systems
    Proceedings of the 7th Workshop on Models@run.time - MRT '12, 2012
    Co-Authors: Mira Vrbaski, Dorina Petriu, Gunter Mussbacher, Daniel Amyot
    Abstract:

    The strength of goal models is their ability to assess candidate solutions against high level criteria for many stakeholders, allowing System-wide trade-offs to be performed. We argue that, in a Context-Aware System, reasoning based on goal models can complement standard rule-based reasoning engines for decision making without involving explicit interaction with the user. While rule-based Systems excel in filtering out unsuitable solutions based on clear criteria, it is difficult to rank suitable solutions based on vague, qualitative criteria of stakeholders with a rule-based approach. The User Requirements Notation (URN) is a goal-based and scenario-based requirements modeling language that has been applied to many different domains, from reactive Systems to telecommunication standards to business processes. For Context-Aware Systems, URN's workflow notation can describe the overall behavior of a Context-Aware System and URN's goal models can further enhance reasoning about contextual situations. While URN already supports some of the interactions between workflow and goal models required for the specification of Context-Aware Systems, it does not yet fully support the modeling, design-time simulation, and run-time execution of a Context-Aware System based on its URN model. This paper (i) introduces such a modeling, simulation, and execution environment, (ii) discusses three architectural solutions for combined rule-based and goal-oriented reasoning, and (iii) reports on a URN profile that describes a domain-specific language for Context-Aware reasoning using goal-orientation with the help of an example application from the health care domain.

Thomas Brandmeier - One of the best experts on this subject based on the ideXlab platform.

  • Context-Aware System for pre-triggering irreversible vehicle safety actuators
    Accident Analysis and Prevention, 2017
    Co-Authors: Dennis Böhmländer, Tobias Dirndorfer, Ali Hilal Al-bayatti, Thomas Brandmeier
    Abstract:

    New vehicle safety Systems have led to a steady improvement of road safety and a reduction in the risk of suffering a major injury in vehicle accidents. A huge leap forward in the development of new vehicle safety Systems are actuators that have to be activated irreversibly shortly before a collision in order to mitigate accident consequences. The triggering decision has to be based on measurements of exteroceptive sensors currently used in driver assistance Systems. This paper focuses on developing a novel Context-Aware System designed to detect potential collisions and to trigger safety actuators even before an accident occurs. In this context, the analysis examines the information that can be collected from exteroceptive sensors (pre-crash data) to predict a certain collision and its severity to decide whether a triggering is entitled or not. A five-layer Context-Aware architecture is presented, that is able to collect contextual information about the vehicle environment and the actual driving state using different sensors, to perform reasoning about potential collisions, and to trigger safety functions upon that information. Accident analysis is used in a data model to represent uncertain knowledge and to perform reasoning. A simulation concept based on real accident data is introduced to evaluate the presented System concept.

Saad Almutairi - One of the best experts on this subject based on the ideXlab platform.

  • An enhancement on class diagram to model a secure context aware System
    2017 International Conference on Innovations in Green Energy and Healthcare Technologies (IGEHT), 2017
    Co-Authors: Saad Almutairi
    Abstract:

    Context-Aware Systems are steadily becoming a reality thanks to the advances in wireless communication and sensing technologies that have led to the development of powerful mobile computing devices such as smartphones and tablet computers. These devices are capable of sensing the user's context information and sharing them via wireless links and the Internet, without the user knowledge most of the time, in order to provide the user with personalized information and services anytime anywhere. Guaranteeing the security of the user's context information is paramount for the acceptance and wide adoption of such Systems. This paper proposes an extension of the UML class diagram with explicit notations to express the security requirements of Context-Aware Systems. This approach enables the integration of the security requirements together with the functional and Context-Awareness requirements of the System, at an early stage of the System development life-cycle. The pragmatics of the proposed approach is demonstrated through real-world examples.

  • ICDIM - Specifying security requirements of context aware System using UML
    Seventh International Conference on Digital Information Management (ICDIM 2012), 2012
    Co-Authors: Saad Almutairi, Giampaolo Bella, Ala Abu-samaha
    Abstract:

    Unified Modeling Language (UML) is an effective tool to model information Systems and to develop effective System specifications. Context Aware Systems possess a dynamic behaviour based on parameters such as time and location which makes the task of modelling a context aware System quite complex namely the security requirements of the System. Since UML doesn't provide specific use cases to model Context Aware Systems; in this work the authors propose suitable extensions to UML use case modelling to model the security requirements of a Context Aware System. This work is motivated and defined in terms of notations and diagramming techniques and the proposed extensions account for both static and dynamic functions of Context Aware Systems.

  • REVIEW ON THE SECURITY RELATED ISSUES IN CONTEXT AWARE System
    International Journal of Wireless & Mobile Networks, 2012
    Co-Authors: Saad Almutairi, Hamza Aldabbas, Ala Abu-samaha
    Abstract:

    A context aware System is recognized as a “System which uses any context information previous to, or in the duration of, service stipulations”, whereas the main goal of this System is to track and identify the users. The mobility feature of most computing and personal assistance devices have made the ‘context of the user’ an important aspect of the System, affecting its development process in terms of end-user requirements and System behaviour. Context Aware Systems are different from traditional Systems as they provide unique features such as heterogeneity, high complexity and artificial intelligence. Since the parameters that constitute a context aware System, such as location and time of the day are rapidly changing. The use and importance of this System is increasing and therefore becoming a major part in prospective wireless Systems. However, beside the numerous advantages, Context-Aware Systems have also come up with the numerous issues and challenges related to privacy and security of the user’s information in these Systems. Therefore, this paper is mainly aimed at a review of the security and privacy issues related with Context-Aware Systems. It also gives a brief introduction regarding the preferred and suitable frameworks required to implement the security requirements. It further focuses on the main question for most researchers about the frameworks used for Context-Aware Systems.

  • Specifying security requirements of context aware System using UML
    Seventh International Conference on Digital Information Management (ICDIM 2012), 2012
    Co-Authors: Saad Almutairi, Giampaolo Bella, Ala Abu-samaha
    Abstract:

    Unified Modeling Language (UML) is an effective tool to model information Systems and to develop effective System specifications. Context Aware Systems possess a dynamic behaviour based on parameters such as time and location which makes the task of modelling a context aware System quite complex namely the security requirements of the System. Since UML doesn't provide specific use cases to model Context Aware Systems; in this work the authors propose suitable extensions to UML use case modelling to model the security requirements of a Context Aware System. This work is motivated and defined in terms of notations and diagramming techniques and the proposed extensions account for both static and dynamic functions of Context Aware Systems.

Ala Abu-samaha - One of the best experts on this subject based on the ideXlab platform.

  • ICDIM - Specifying security requirements of context aware System using UML
    Seventh International Conference on Digital Information Management (ICDIM 2012), 2012
    Co-Authors: Saad Almutairi, Giampaolo Bella, Ala Abu-samaha
    Abstract:

    Unified Modeling Language (UML) is an effective tool to model information Systems and to develop effective System specifications. Context Aware Systems possess a dynamic behaviour based on parameters such as time and location which makes the task of modelling a context aware System quite complex namely the security requirements of the System. Since UML doesn't provide specific use cases to model Context Aware Systems; in this work the authors propose suitable extensions to UML use case modelling to model the security requirements of a Context Aware System. This work is motivated and defined in terms of notations and diagramming techniques and the proposed extensions account for both static and dynamic functions of Context Aware Systems.

  • REVIEW ON THE SECURITY RELATED ISSUES IN CONTEXT AWARE System
    International Journal of Wireless & Mobile Networks, 2012
    Co-Authors: Saad Almutairi, Hamza Aldabbas, Ala Abu-samaha
    Abstract:

    A context aware System is recognized as a “System which uses any context information previous to, or in the duration of, service stipulations”, whereas the main goal of this System is to track and identify the users. The mobility feature of most computing and personal assistance devices have made the ‘context of the user’ an important aspect of the System, affecting its development process in terms of end-user requirements and System behaviour. Context Aware Systems are different from traditional Systems as they provide unique features such as heterogeneity, high complexity and artificial intelligence. Since the parameters that constitute a context aware System, such as location and time of the day are rapidly changing. The use and importance of this System is increasing and therefore becoming a major part in prospective wireless Systems. However, beside the numerous advantages, Context-Aware Systems have also come up with the numerous issues and challenges related to privacy and security of the user’s information in these Systems. Therefore, this paper is mainly aimed at a review of the security and privacy issues related with Context-Aware Systems. It also gives a brief introduction regarding the preferred and suitable frameworks required to implement the security requirements. It further focuses on the main question for most researchers about the frameworks used for Context-Aware Systems.

  • Specifying security requirements of context aware System using UML
    Seventh International Conference on Digital Information Management (ICDIM 2012), 2012
    Co-Authors: Saad Almutairi, Giampaolo Bella, Ala Abu-samaha
    Abstract:

    Unified Modeling Language (UML) is an effective tool to model information Systems and to develop effective System specifications. Context Aware Systems possess a dynamic behaviour based on parameters such as time and location which makes the task of modelling a context aware System quite complex namely the security requirements of the System. Since UML doesn't provide specific use cases to model Context Aware Systems; in this work the authors propose suitable extensions to UML use case modelling to model the security requirements of a Context Aware System. This work is motivated and defined in terms of notations and diagramming techniques and the proposed extensions account for both static and dynamic functions of Context Aware Systems.

Mira Vrbaski - One of the best experts on this subject based on the ideXlab platform.

  • Models@run.time - Goal models as run-time entities in Context-Aware Systems
    Proceedings of the 7th Workshop on Models@run.time - MRT '12, 2012
    Co-Authors: Mira Vrbaski, Dorina Petriu, Gunter Mussbacher, Daniel Amyot
    Abstract:

    The strength of goal models is their ability to assess candidate solutions against high level criteria for many stakeholders, allowing System-wide trade-offs to be performed. We argue that, in a Context-Aware System, reasoning based on goal models can complement standard rule-based reasoning engines for decision making without involving explicit interaction with the user. While rule-based Systems excel in filtering out unsuitable solutions based on clear criteria, it is difficult to rank suitable solutions based on vague, qualitative criteria of stakeholders with a rule-based approach. The User Requirements Notation (URN) is a goal-based and scenario-based requirements modeling language that has been applied to many different domains, from reactive Systems to telecommunication standards to business processes. For Context-Aware Systems, URN's workflow notation can describe the overall behavior of a Context-Aware System and URN's goal models can further enhance reasoning about contextual situations. While URN already supports some of the interactions between workflow and goal models required for the specification of Context-Aware Systems, it does not yet fully support the modeling, design-time simulation, and run-time execution of a Context-Aware System based on its URN model. This paper (i) introduces such a modeling, simulation, and execution environment, (ii) discusses three architectural solutions for combined rule-based and goal-oriented reasoning, and (iii) reports on a URN profile that describes a domain-specific language for Context-Aware reasoning using goal-orientation with the help of an example application from the health care domain.

  • Goal models as run-time entities in Context-Aware Systems
    Proceedings of the 7th Workshop on Models@run.time - MRT '12, 2012
    Co-Authors: Mira Vrbaski, Dorina Petriu, Gunter Mussbacher, Daniel Amyot
    Abstract:

    The strength of goal models is their ability to assess candidate solutions against high level criteria for many stakeholders, allowing System-wide trade-offs to be performed. We argue that, in a Context-Aware System, reasoning based on goal models can complement standard rule-based reasoning engines for decision making without involving explicit interaction with the user. While rule-based Systems excel in filtering out unsuitable solutions based on clear criteria, it is difficult to rank suitable solutions based on vague, qualitative criteria of stakeholders with a rule-based approach. The User Requirements Notation (URN) is a goal-based and scenario-based requirements modeling language that has been applied to many different domains, from reactive Systems to telecommunication standards to business processes. For Context-Aware Systems, URN's workflow notation can describe the overall behavior of a Context-Aware System and URN's goal models can further enhance reasoning about contextual situations. While URN already supports some of the interactions between workflow and goal models required for the specification of Context-Aware Systems, it does not yet fully support the modeling, design-time simulation, and run-time execution of a Context-Aware System based on its URN model. This paper (i) introduces such a modeling, simulation, and execution environment, (ii) discusses three architectural solutions for combined rule-based and goal-oriented reasoning, and (iii) reports on a URN profile that describes a domain-specific language for Context-Aware reasoning using goal-orientation with the help of an example application from the health care domain.