The Experts below are selected from a list of 3428598 Experts worldwide ranked by ideXlab platform

Sofia Guerra - One of the best experts on this subject based on the ideXlab platform.

  • SAFECOMP - Integrity Static Analysis of COTS/SOUP
    Lecture Notes in Computer Science, 2003
    Co-Authors: Peter Bishop, Sofia Guerra, Robin Bloomfield, Tim Clement, Claire Jones
    Abstract:

    This paper describes the integrity static analysis approach developed to support the justification of commercial off-the-shelf software (COTS) used in a safety-related system. The static analysis was part of an overall software qualification programme, which also included the work reported in our paper presented at Safecomp 2002. Integrity static analysis focuses on unsafe language constructs and “covert” flows, where one thread can affect the data or control flow of another thread. The analysis addressed two main aspects: the internal integrity of the code (especially for the more critical functions), and the intra-component integrity, checking for covert channels. The analysis process was supported by an aggregation of tools, combined and engineered to support the checks done and to scale as necessary. Integrity static analysis is feasible for industrial scale software, did not require unreasonable resources and we provide data that illustrates its contribution to the software qualification programme.

  • software criticality analysis of COTS/SOUP
    Reliability Engineering & System Safety, 2003
    Co-Authors: Peter Bishop, Robin Bloomfield, Tim Clement, Sofia Guerra
    Abstract:

    Abstract This paper describes the software Criticality Analysis (SCA) approach that was developed to support the justification of using commercial off-the-shelf software (COTS) in a safety-related system. The primary objective of SCA is to assess the importance to safety of the software components within the COTS and to show there is segregation between software components with different safety importance. The approach taken was a combination of Hazops based on design documents and on a detailed analysis of the actual code (100 kloc). Considerable effort was spent on validation and ensuring the conservative nature of the results. The results from reverse engineering from the code showed that results based only on architecture and design documents would have been misleading.

  • SAFECOMP - software Criticality Analysis of COTS/SOUP
    Computer Safety Reliability and Security, 2002
    Co-Authors: Peter Bishop, Robin Bloomfield, Tim Clement, Sofia Guerra
    Abstract:

    This paper describes the software Criticality Analysis (SCA) approach that was developed to support the justification of commercial off-the-shelf software (COTS) used in a safety-related system. The primary objective of SCA is to assess the importance to safety of the software components within the COTS and to show there is segregation between software components with different safety importance. The approach taken was a combination of Hazops based on design documents and on a detailed analysis of the actual code (100kloc). Considerable effort was spent on validation and ensuring the conservative nature of the results. The results from reverse engineering from the code showed that results based only on architecture and design documents would have been misleading.

  • software criticality analysis of COTS/SOUP
    Lecture Notes in Computer Science, 2002
    Co-Authors: Peter Bishop, Robin Bloomfield, Tim Clement, Sofia Guerra
    Abstract:

    This paper describes the software Criticality Analysis (SCA) approach that was developed to support the justification of commercial off-the-shelf software (COTS) used in a safety-related system. The primary objective of SCA is to assess the importance to safety of the software components within the COTS and to show there is segregation between software components with different safety importance. The approach taken was a combination of Hazops based on design documents and on a detailed analysis of the actual code (100kloc). Considerable effort was spent on validation and ensuring the conservative nature of the results. The results from reverse engineering from the code showed that results based only on architecture and design documents would have been misleading.

Peter Bishop - One of the best experts on this subject based on the ideXlab platform.

  • SAFECOMP - Integrity Static Analysis of COTS/SOUP
    Lecture Notes in Computer Science, 2003
    Co-Authors: Peter Bishop, Sofia Guerra, Robin Bloomfield, Tim Clement, Claire Jones
    Abstract:

    This paper describes the integrity static analysis approach developed to support the justification of commercial off-the-shelf software (COTS) used in a safety-related system. The static analysis was part of an overall software qualification programme, which also included the work reported in our paper presented at Safecomp 2002. Integrity static analysis focuses on unsafe language constructs and “covert” flows, where one thread can affect the data or control flow of another thread. The analysis addressed two main aspects: the internal integrity of the code (especially for the more critical functions), and the intra-component integrity, checking for covert channels. The analysis process was supported by an aggregation of tools, combined and engineered to support the checks done and to scale as necessary. Integrity static analysis is feasible for industrial scale software, did not require unreasonable resources and we provide data that illustrates its contribution to the software qualification programme.

  • software criticality analysis of COTS/SOUP
    Reliability Engineering & System Safety, 2003
    Co-Authors: Peter Bishop, Robin Bloomfield, Tim Clement, Sofia Guerra
    Abstract:

    Abstract This paper describes the software Criticality Analysis (SCA) approach that was developed to support the justification of using commercial off-the-shelf software (COTS) in a safety-related system. The primary objective of SCA is to assess the importance to safety of the software components within the COTS and to show there is segregation between software components with different safety importance. The approach taken was a combination of Hazops based on design documents and on a detailed analysis of the actual code (100 kloc). Considerable effort was spent on validation and ensuring the conservative nature of the results. The results from reverse engineering from the code showed that results based only on architecture and design documents would have been misleading.

  • SAFECOMP - software Criticality Analysis of COTS/SOUP
    Computer Safety Reliability and Security, 2002
    Co-Authors: Peter Bishop, Robin Bloomfield, Tim Clement, Sofia Guerra
    Abstract:

    This paper describes the software Criticality Analysis (SCA) approach that was developed to support the justification of commercial off-the-shelf software (COTS) used in a safety-related system. The primary objective of SCA is to assess the importance to safety of the software components within the COTS and to show there is segregation between software components with different safety importance. The approach taken was a combination of Hazops based on design documents and on a detailed analysis of the actual code (100kloc). Considerable effort was spent on validation and ensuring the conservative nature of the results. The results from reverse engineering from the code showed that results based only on architecture and design documents would have been misleading.

  • software criticality analysis of COTS/SOUP
    Lecture Notes in Computer Science, 2002
    Co-Authors: Peter Bishop, Robin Bloomfield, Tim Clement, Sofia Guerra
    Abstract:

    This paper describes the software Criticality Analysis (SCA) approach that was developed to support the justification of commercial off-the-shelf software (COTS) used in a safety-related system. The primary objective of SCA is to assess the importance to safety of the software components within the COTS and to show there is segregation between software components with different safety importance. The approach taken was a combination of Hazops based on design documents and on a detailed analysis of the actual code (100kloc). Considerable effort was spent on validation and ensuring the conservative nature of the results. The results from reverse engineering from the code showed that results based only on architecture and design documents would have been misleading.

Tim Clement - One of the best experts on this subject based on the ideXlab platform.

  • SAFECOMP - Integrity Static Analysis of COTS/SOUP
    Lecture Notes in Computer Science, 2003
    Co-Authors: Peter Bishop, Sofia Guerra, Robin Bloomfield, Tim Clement, Claire Jones
    Abstract:

    This paper describes the integrity static analysis approach developed to support the justification of commercial off-the-shelf software (COTS) used in a safety-related system. The static analysis was part of an overall software qualification programme, which also included the work reported in our paper presented at Safecomp 2002. Integrity static analysis focuses on unsafe language constructs and “covert” flows, where one thread can affect the data or control flow of another thread. The analysis addressed two main aspects: the internal integrity of the code (especially for the more critical functions), and the intra-component integrity, checking for covert channels. The analysis process was supported by an aggregation of tools, combined and engineered to support the checks done and to scale as necessary. Integrity static analysis is feasible for industrial scale software, did not require unreasonable resources and we provide data that illustrates its contribution to the software qualification programme.

  • software criticality analysis of COTS/SOUP
    Reliability Engineering & System Safety, 2003
    Co-Authors: Peter Bishop, Robin Bloomfield, Tim Clement, Sofia Guerra
    Abstract:

    Abstract This paper describes the software Criticality Analysis (SCA) approach that was developed to support the justification of using commercial off-the-shelf software (COTS) in a safety-related system. The primary objective of SCA is to assess the importance to safety of the software components within the COTS and to show there is segregation between software components with different safety importance. The approach taken was a combination of Hazops based on design documents and on a detailed analysis of the actual code (100 kloc). Considerable effort was spent on validation and ensuring the conservative nature of the results. The results from reverse engineering from the code showed that results based only on architecture and design documents would have been misleading.

  • SAFECOMP - software Criticality Analysis of COTS/SOUP
    Computer Safety Reliability and Security, 2002
    Co-Authors: Peter Bishop, Robin Bloomfield, Tim Clement, Sofia Guerra
    Abstract:

    This paper describes the software Criticality Analysis (SCA) approach that was developed to support the justification of commercial off-the-shelf software (COTS) used in a safety-related system. The primary objective of SCA is to assess the importance to safety of the software components within the COTS and to show there is segregation between software components with different safety importance. The approach taken was a combination of Hazops based on design documents and on a detailed analysis of the actual code (100kloc). Considerable effort was spent on validation and ensuring the conservative nature of the results. The results from reverse engineering from the code showed that results based only on architecture and design documents would have been misleading.

  • software criticality analysis of COTS/SOUP
    Lecture Notes in Computer Science, 2002
    Co-Authors: Peter Bishop, Robin Bloomfield, Tim Clement, Sofia Guerra
    Abstract:

    This paper describes the software Criticality Analysis (SCA) approach that was developed to support the justification of commercial off-the-shelf software (COTS) used in a safety-related system. The primary objective of SCA is to assess the importance to safety of the software components within the COTS and to show there is segregation between software components with different safety importance. The approach taken was a combination of Hazops based on design documents and on a detailed analysis of the actual code (100kloc). Considerable effort was spent on validation and ensuring the conservative nature of the results. The results from reverse engineering from the code showed that results based only on architecture and design documents would have been misleading.

Robin Bloomfield - One of the best experts on this subject based on the ideXlab platform.

  • SAFECOMP - Integrity Static Analysis of COTS/SOUP
    Lecture Notes in Computer Science, 2003
    Co-Authors: Peter Bishop, Sofia Guerra, Robin Bloomfield, Tim Clement, Claire Jones
    Abstract:

    This paper describes the integrity static analysis approach developed to support the justification of commercial off-the-shelf software (COTS) used in a safety-related system. The static analysis was part of an overall software qualification programme, which also included the work reported in our paper presented at Safecomp 2002. Integrity static analysis focuses on unsafe language constructs and “covert” flows, where one thread can affect the data or control flow of another thread. The analysis addressed two main aspects: the internal integrity of the code (especially for the more critical functions), and the intra-component integrity, checking for covert channels. The analysis process was supported by an aggregation of tools, combined and engineered to support the checks done and to scale as necessary. Integrity static analysis is feasible for industrial scale software, did not require unreasonable resources and we provide data that illustrates its contribution to the software qualification programme.

  • software criticality analysis of COTS/SOUP
    Reliability Engineering & System Safety, 2003
    Co-Authors: Peter Bishop, Robin Bloomfield, Tim Clement, Sofia Guerra
    Abstract:

    Abstract This paper describes the software Criticality Analysis (SCA) approach that was developed to support the justification of using commercial off-the-shelf software (COTS) in a safety-related system. The primary objective of SCA is to assess the importance to safety of the software components within the COTS and to show there is segregation between software components with different safety importance. The approach taken was a combination of Hazops based on design documents and on a detailed analysis of the actual code (100 kloc). Considerable effort was spent on validation and ensuring the conservative nature of the results. The results from reverse engineering from the code showed that results based only on architecture and design documents would have been misleading.

  • SAFECOMP - software Criticality Analysis of COTS/SOUP
    Computer Safety Reliability and Security, 2002
    Co-Authors: Peter Bishop, Robin Bloomfield, Tim Clement, Sofia Guerra
    Abstract:

    This paper describes the software Criticality Analysis (SCA) approach that was developed to support the justification of commercial off-the-shelf software (COTS) used in a safety-related system. The primary objective of SCA is to assess the importance to safety of the software components within the COTS and to show there is segregation between software components with different safety importance. The approach taken was a combination of Hazops based on design documents and on a detailed analysis of the actual code (100kloc). Considerable effort was spent on validation and ensuring the conservative nature of the results. The results from reverse engineering from the code showed that results based only on architecture and design documents would have been misleading.

  • software criticality analysis of COTS/SOUP
    Lecture Notes in Computer Science, 2002
    Co-Authors: Peter Bishop, Robin Bloomfield, Tim Clement, Sofia Guerra
    Abstract:

    This paper describes the software Criticality Analysis (SCA) approach that was developed to support the justification of commercial off-the-shelf software (COTS) used in a safety-related system. The primary objective of SCA is to assess the importance to safety of the software components within the COTS and to show there is segregation between software components with different safety importance. The approach taken was a combination of Hazops based on design documents and on a detailed analysis of the actual code (100kloc). Considerable effort was spent on validation and ensuring the conservative nature of the results. The results from reverse engineering from the code showed that results based only on architecture and design documents would have been misleading.

Claire Jones - One of the best experts on this subject based on the ideXlab platform.

  • SAFECOMP - Integrity Static Analysis of COTS/SOUP
    Lecture Notes in Computer Science, 2003
    Co-Authors: Peter Bishop, Sofia Guerra, Robin Bloomfield, Tim Clement, Claire Jones
    Abstract:

    This paper describes the integrity static analysis approach developed to support the justification of commercial off-the-shelf software (COTS) used in a safety-related system. The static analysis was part of an overall software qualification programme, which also included the work reported in our paper presented at Safecomp 2002. Integrity static analysis focuses on unsafe language constructs and “covert” flows, where one thread can affect the data or control flow of another thread. The analysis addressed two main aspects: the internal integrity of the code (especially for the more critical functions), and the intra-component integrity, checking for covert channels. The analysis process was supported by an aggregation of tools, combined and engineered to support the checks done and to scale as necessary. Integrity static analysis is feasible for industrial scale software, did not require unreasonable resources and we provide data that illustrates its contribution to the software qualification programme.