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Time Basic Petri nets are an expressive extension of Petri nets, suitable to model real-time systems. This paper introduces a coverability analysis technique to cope with structurally unbounded Time Basic Petri net models exhibiting non-urgent behavior: i.e., models in which transitions may choose to do not fire and let time pass, even if this could lead to transition disabling. The approach we present...
While common task models in real-time analysis assume a task as being activated by a single event and producing a single outgoing event after its full completion, the event dependency analysis extended the model to allow for multiple outgoing events to occur already during the run-time of a single job. It uses the structure of a timing-annotated control flow graph to calculate the maximal densities...
We provide four new schedulability tests for a scheduling model according to which there is a high priority task concurrently executed with a set of EDF-scheduled tasks. All tests are proved correct and have their performance evaluated by simulation.
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