Refinement guarantees that the concrete version of a model does not violate the constraints
introduced at the abstract level. The peculiarity of refinement, however, is that we have no …

Traces are used to show whether a model complies with the intended behavior. A modeler
can use trace checking to ensure the preservation of the model behavior during the …

Formal methods focus on a posteriori analysis and a modeller gets little assistance in
constructing a model which makes formal modelling more expensive and laborious than it …

The superposition refinement with the Event-B modeling method is useful because it
supports construction of models in multiple abstraction levels, and thus mitigates the burden …

Formal modelling is indispensable for engineering highly dependable systems. However, a
wider acceptance of formal methods is hindered by their insufficient usability and scalability …

Stepwise refinement and Design-by-Contract are two formal approaches for modelling
systems. These approaches are widely used in the development of systems. Both …

In this paper we present a static analysis to determine how events influence each other in
Event-B and classical B models. The analysis, called an enabling analysis, uses syntactic …

We are interested in verifying dynamic properties of reactive systems. The reactive systems
are specified by B event systems in a refinement development. The refinement allows us to …

Writing a formal model is a complicated and time-consuming task. Usually, one successively
refines a model with the help of proof, animation and model checking. In case an error such …

The Event-B method is generally used to build models incrementally by integrating high
level requirements. However, developing correct systems is not a cakewalk and remains a …