Transportable agents are autonomous programs. They can move through a heterogeneous network of computers under their own control, migrating from host to host. They can sense the s...
The computer simulation control problem can be splitted in two parts, namely a local control problem and a global control problem. The local control de nes the \behavior" of ...
A polymorphic function is parametric if its behavior does not depend on the type at which it is instantiated. Starting with Reynolds's work, the study of parametricity is typ...
Real-time systems operate in \real," continuous time and state changes may occur at any real-numbered time point. Yet many veri cation methods are based on the assumption that...
This paper is a highly personal and subjective account of how the language of statecharts came into being. The main novelty of the language is in being a fully executable visual f...