We consider parametric version of fixed-delay continuous-time Markov chains (or equivalently deterministic and stochastic Petri nets, DSPN) where fixeddelay transitions are specified by parameters,â€¦ (More)

Every probability distribution can be approximated up to a given precision by a phase-type distribution, i.e. a distribution encoded by a continuous time Markov chain (CTMC). However, an excessiveâ€¦ (More)

We present a practically appealing extension of the probabilistic model checker PRISM rendering it to handle fixed-delay continuous-time Markov chains (fdCTMCs) with rewards, the equivalent formalismâ€¦ (More)

Repair mechanisms are important within resilient systems to maintain the system in an operational state after an error occurred. Usually, constraints on the repair mechanisms are imposed, e.g.,â€¦ (More)

We consider the fixed-delay synthesis problem for continuous-time Markov chains extended with fixed-delay transitions (fdCTMC). The goal is to synthesize concrete values of the fixed-delaysâ€¦ (More)

2012 12th International Conference on Applicationâ€¦

2012

The Sequence Chart Studio (SCStudio) is a user friendly drawing and verification tool for Message Sequence Charts (MSC). SCStudio supports several checkers that are able to verify properties such asâ€¦ (More)

In this poster paper, we study performance of systems modeled by deterministic and stochastic Petri nets (DSPN). As a performance measure, we consider long-run average time spent in a set ofâ€¦ (More)

Continuous-time Markov chains with alarms (ACTMCs) allow for alarm events that can be non-exponentially distributed. Within parametric ACTMCs, the parameters of alarm-event distributions are notâ€¦ (More)