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  • 1.
    Forsberg, Håkan
    et al.
    Mälardalen University, School of Innovation, Design and Engineering, Embedded Systems.
    Lundqvist, Kristina
    Mälardalen University, School of Innovation, Design and Engineering, Embedded Systems.
    Ekstrand, Fredrik
    Mälardalen University, School of Innovation, Design and Engineering, Embedded Systems.
    Otterskog, Magnus
    Mälardalen University, School of Innovation, Design and Engineering, Embedded Systems.
    Early Results and Ideas for Enhancements of the Master of Engineering Programme in Dependable Aerospace Systems2017In: The 6th Development Conference for Swedish Engineering USIU2017, 2017Conference paper (Refereed)
    Abstract [en]

    The five-year Master of Engineering Programme in Dependable Aerospace Systems, with dependability as its silver thread, started at Mälardalen University (MDH) in 2015. This paper presents selected ideas behind the creation of the programme, together with some preliminary analysis of current results and suggested enhancements for the programme’s fourth and fifth years.

  • 2.
    Schwierz, A.
    et al.
    Research Center: Competence Field Aviation, Technische Hochschule Ingolstadt, Germany.
    Forsberg, Håkan
    Mälardalen University, School of Innovation, Design and Engineering, Embedded Systems.
    Assurance Benefits of ISO 26262 Compliant Microcontrollers for Safety-Critical Avionics2018In: / [ed] Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics), Springer Verlag , 2018, p. 27-41Conference paper (Refereed)
    Abstract [en]

    The usage of complex Microcontroller Units (MCUs) in avionics systems constitutes a challenge in assuring their safety. They are not always developed according to the assurance requirements accepted by the aerospace industry. These Commercial off-the-shelf (COTS) hardware components usually target other domains like the telecommunication branch, because of the volume of sales and reduced liability. In the last years MCUs developed in compliance to the ISO 26262 have been released on the market for safety-related automotive applications. The avionics market could profit taking credit for some of the activities conducted in developing these MCUs. In this paper we present evaluation results based on comparing assurance activities from ISO 26262 that could be considered for compliance to relevant assurance guidance for COTS MCU in avionics. 

  • 3.
    Schwierz, Andreas
    et al.
    Technische Hochschule Ingolstadt, Germany.
    Forsberg, Håkan
    Mälardalen University, School of Innovation, Design and Engineering, Embedded Systems.
    Assurance Case to Structure COTS Hardware Component Assurance for Safety-Critical Avionics2018In: 37th Digital Avionics Systems Conference DASC'37, 2018, Vol. 8569774Conference paper (Refereed)
    Abstract [en]

    In every avionics system, Commercial off-the-shelf (COTS) components play an important role by enabling more complex functions. Even in safety-critical systems, COTS hardware components are ubiquitous nowadays. Since the avionics manufacturer do not develop the COTS components themselves, traditional avionics Development Assurance (DA) methods cannot be used. Instead other assurance strategies are used. The problem is that the complexity of the COTS components continuously increase and that several different types COTS components exist, each requiring different assurance strategies. This article includes a literature review over Certification Authority (CA) materials and research reports over COTS hardware components certification related documents since the early 1990s. We then contribute by an approach that can structure this material to provide an overview on COTS assurance methods or activities through an assurance case. The early results show that assurance cases are a possible way to argument COTS assurance and that these cases reveal interconnections between the assurance methods and as such contribute to the overall goal of increased confidence in using COTS components.

  • 4.
    Sundell, Johan
    et al.
    Mälardalen University, School of Innovation, Design and Engineering, Embedded Systems.
    Torkar, Richard
    Chalmers University of Technology, Sweden.
    Lundqvist, Kristina
    Mälardalen University, School of Innovation, Design and Engineering, Embedded Systems.
    Forsberg, Håkan
    Mälardalen University, School of Innovation, Design and Engineering, Embedded Systems.
    Prediction of Undetected Faults in Safety-Critical Software2019In: 12th IEEE International Conference on Software Testing, Verification and Validation Workshops (ICSTW 2019), Xi'an, China, 2019, p. 296-304Conference paper (Refereed)
    Abstract [en]

    Safety-critical software systems need to meet exceptionally strict standards in terms of dependability. Best practice to achieve this is to follow and develop the software according to domain specific standards. These standards give guidelines on development and testing activities. The challenge is that even if you follow the steps of the appropriate standard you have no quantification of the amount of faults potentially still lingering in the system. This paper presents a way to statistically estimate the amount of undetected faults, based on test results.

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