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  • 1. Enoiu, Eduard Paul
    et al.
    Doganay, Kivanc
    RISE, Swedish ICT, SICS.
    Bohlin, Markus
    RISE - Research Institutes of Sweden, ICT, SICS.
    Sundmark, Daniel
    RISE, Swedish ICT, SICS.
    Pettersson, Paul
    MOS: An Integrated Model-based and Search-based Testing Tool for Function Block Diagrams2013Conference paper (Refereed)
    Abstract [en]

    In this paper we present a new testing tool for safety critical applications described in Function Block Diagram (FBD) language aimed to support both a model and a search-based approach. Many benefits emerge from this tool, including the ability to automatically generate test suites from an FBD program in order to comply to quality requirements such as component testing and specific coverage measurements. Search-based testing methods are used to generate test data based on executable code rather than the FBD program, alleviating any problems that may arise from the ambiguities that occur while creating FBD programs. Test cases generated by both approaches are executed and used as a way of cross validation. In the current work, we describe the architecture of the tool, its workflow process, and a case study in which the tool has been applied in a real industrial setting to test a train control management system.

  • 2.
    Rodriguez-Navas, Guillermo
    et al.
    Mälardalen University, Sweden.
    Kobetski, Avenir
    RISE, Swedish ICT, SICS, Software and Systems Engineering Laboratory.
    Sundmark, Daniel
    RISE, Swedish ICT, SICS.
    Gustafsson, Thomas
    Scania CV AB, Sweden.
    Offline Analysis of Independent Guarded Assertions in Automotive Integration Testing2015In: 2015 IEEE 12th International Conference on Embedded Software and Systems, 2015, 7Conference paper (Refereed)
    Abstract [en]

    The size and complexity of software in automotive systems have increased steadily over the last decades. Modern vehicles typically contain numerous electrical control units (ECUs), and more and more features require real-time interaction between several dedicated ECUs (e.g., gearbox, brake and engine control units) in order to perform their tasks. Since system safety and reliability must not be adversely affected by this increase in complexity, proper quality assurance is a must. Such quality assurance is often performed by testing the system in different levels of integration throughout the development process. However, the growth of complexity of the system under test aslo affects the testing, making it laborious, difficult and costly. This paper presents a novel method for efficient offline analysis of traces, which has been especially tailored for integration testing of automotive systems. The method exploits the recently defined concept of independent guarded assertion in order to formally describe the events that are relevant for the analysis as well as the expected behavior in those events. The offline analysis is implemented using a standard commercial model checker and has shown good performance in the conducted experiments.

  • 3. Sundmark, Ove
    et al.
    Sundmark, Daniel
    RISE, Swedish ICT, SICS. RISE, Swedish ICT, SICS, Security Lab.
    Cedergren, Stefan
    Jackson, Mats
    Performance in the Public Sector - Efficiency and Effectiveness of Payroll Services in Three Municipalities2012Conference paper (Refereed)
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