The paper presents a usability study conducted with graduate and undergraduate computer science students, designed to evaluate the effectiveness of a software visualization tool n...
We consider unranked trees, that have become an active subject of study recently due to XML applications, and characterize commonly used fragments of ļ¬rstorder (FO) and monadic ...
We investigate model theoretic characterisations of the expressive power of modal logics in terms of bisimulation invariance. The paradigmatic result of this kind is van Benthemā...
We provide a uniform solution to the problem of synthesizing a ļ¬nite-state distributed system. An instance of the synthesis problem consists of a system architecture and a tempo...
Three-valued models, in which properties of a system are either true, false or unknown, have recently been advocated as a better representation for reactive program abstractions g...