A specification theory combines notions of specifications and implementations with a
satisfaction relation, a refinement relation and a set of operators supporting stepwise design …

We survey various notions of probabilistic automata and probabilistic bisimulation,
accumulating in an expressiveness hierarchy of probabilistic system types. The aim of this …

In order to describe probabilistic processes by means of a formal model, some
considerations have to be taken into account. In this paper we present some of the ideas …

Combining; discrete state transitions with differential equations, Hybrid system models
provide an expressive formalism for describing software systems that interact with a physical …

As I write these lines, a period of over four great years that led to this thesis ends. The TU/e
is a remarkably vivid place and it provides a nice environment for (foreign) PhD students …

A specification theory combines notions of specifications and implementations with a
satisfaction relation, a refinement relation, and a set of operators supporting stepwise …

Markovian behavioral equivalences are a means to relate and manipulate the formal
descriptions of systems with an underlying CTMC semantics. There are three fundamental …

The behavioral equivalence that is typically used to relate Markovian process terms and to
reduce their underlying state spaces is Markovian bisimilarity. One of the reasons is that …

We present a specification theory for timed systems implemented in the Ecdar tool. We
illustrate the operations of the specification theory on a running example, showing the …

We present a real-time specification framework based on Timed I/O Automata and a
comprehensive tool support for it. The framework supports various design methodologies …