Oliver Schwahn

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In urban search and rescue scenarios, typical applications of robots include autonomous exploration of possibly dangerous sites, and the recognition of victims and other objects of interest. In complex scenarios, relying on only one type of sensor is often misleading, while using complementary sensors frequently helps improving the performance. To that end,(More)
Software Fault Injection (SFI) is an established technique for assessing the robustness of a software under test by exposing it to faults in its operational environment. Depending on the complexity of this operational environment, the complexity of the software under test, and the number and type of faults, a thorough SFI assessment can entail (a) numerous(More)
Fault Injection (FI) is an established testing technique to assess the fault-tolerance of computer systems. FI tests are usually highly automated for efficiency and to prevent human error from affecting result reliability. Most existing FI automation tools have been built for a specific application domain, i.e., a certain system under test (SUT) and fault(More)
Modern operating systems (OSs) consist of numerous interacting components, many of which are developed and maintained independently of one another. In monolithic systems, the boundaries of and interfaces between such components are not strictly enforced at runtime. Therefore, faults in individual components may directly affect other parts of the system in(More)
For mixed-criticality automotive systems, the functional safety standard ISO 26262 stipulates freedom from interference, i.e., Errors should not propagate from low to high criticality tasks. To prevent the propagation of timing errors, the automotive software standard AUTOSAR provides monitor-based timing protection, which detects and confines task timing(More)
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