Frank Soboczenski

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Given that real-time systems are specified to a degree of confidence, budget overruns should be expected to occur in a system at some point. When a budget overrun occurs, it is necessary to understand how long such a state persists, in order to determine if the fault tolerance of the system is adequate to handle the problem. However, given the rarity of(More)
Many tasks with interfaces require entering data accurately, for example, entering patient data in an electronic records system or programming infusion pumps. However, human error is inevitable. Paradoxically, results from cognitive psychology suggest that representing information in a poorer quality format increases the likelihood of memorising the(More)
A key issue with Worst-Case Execution Time (WCET) analyses is the evaluation of the tightness and soundness of the results produced. In the absence of a ground truth, i.e. the Actual WCET (AWCET), such evaluations rely on comparison between different estimates or observed values. In this paper, we introduce a framework for the evaluation of(More)
Probabilistic and statistical temporal analyses have been developed as a means of determining the worst-case execution and response times of real-time software for decades. A number of such methods have been proposed in the literature, of which the majority claim to be able to provide worst-case timing scenarios with respect to a given likelihood of a(More)
Most work on mixed-criticality scheduling has considered timing-related failures to be independent of one another. In reality this is not true as in many systems the state that caused the original failure will be similar to the state in the next release (job) of the task. Therefore when arguing about the number of jobs that do not meet their deadlines, it(More)
Safety critical number-entry tasks, such as programming syringe pumps, are common occurrences in healthcare settings. However, humans are prone to error and healthcare staff must often work in distracting and high stress environments. Previous work has developed a potential intervention that could reduce errors using a phenomenon called the Perceptual(More)
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