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Auflistung nach Autor:in "Kropf, Thomas"

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  • Zeitschriftenartikel
    DWARF-driven Equivalence Checking of UML Statecharts and Software Components
    (Softwaretechnik-Trends Band 31, Heft 3, 2011) Heckeler, Patrick; Behrend, Jörg; Ruf, Jürgen; Kropf, Thomas; Rosenstiel, Wolfgang; Weiss, Roland
    This article presents an instrumentation-free runtime verification methodology built upon an external observer which uses DWARF1 -statements to monitor system behavior. The observer delivers information about variable values used for state-encoding and method calls representing transitions. These information are passed to an engine which parses the system specification in terms of a UML statechart. It is transformed into an executable automaton which acts as a golden reference for equivalence checking. The presented approach makes it possible to perform verification directly on the target architecture and keeps up test significance by avoiding modification of the executable caused by injected monitors or other code probes
  • Konferenzbeitrag
    State-based coverage analysis and UML-driven equivalence checking for C++ state machines
    (FM+AM`2010 – Second International Workshop on Formal Methods and Agile Methods, 2010) Heckeler, Patrick; Behrend, Jörg; Kropf, Thomas; Ruf, Jürgen; Rosenstiel, Wolfgang; Weiss, Roland
    This paper presents a methodology using an instrumentation-based behavioral checker to detect behavioral deviations of a C++ object implementing a finite state machine (FSM) and the corresponding specification defined as a UML state chart. The approach is able to link the source code with the appropriate states and provides a coverage analysis to show which states have been covered by unit, system and integration tests. Furthermore, the approach provides statistical information about the distribution of covered lines of code among all included files and directories. As a proof of concept the presented approach has been implemented in terms of a C++-library and has been successfully applied to OPC UA, an industrial automation infrastructure software.