Parallel program design: a foundation
Parallel program design: a foundation
Rule-based programming under OPS5
Rule-based programming under OPS5
On the development of reactive systems
Logics and models of concurrent systems
The temporal logic of reactive and concurrent systems
The temporal logic of reactive and concurrent systems
Proof, language, and interaction
Synchronous Programming of Reactive Systems
Synchronous Programming of Reactive Systems
Real-Time Hierarchical Control
IEEE Software
What is in a Step: On the Semantics of Statecharts
TACS '91 Proceedings of the International Conference on Theoretical Aspects of Computer Software
The Active Database Management System Manifesto: A Rulebase of ADBMS Features
RIDS '95 Proceedings of the Second International Workshop on Rules in Database Systems
Explicit Modeling of Influences, and of Their Absence, in Distributed Systems
TACAS '02 Proceedings of the 8th International Conference on Tools and Algorithms for the Construction and Analysis of Systems
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The rule-based paradigm for knowledge representation appears in many disguises within computer science. In this paper we address special issues which arise when the rule-based programming paradigm is employed in the development of reactive systems. We begin by presenting a rule-based language RL which has emerged while developing intelligent cruise control systems. We define a desired declarative semantics and correctness criteria for rule-based programs which respect causality, synchrony assumption and desired determinism. Two alternative approaches are proposed to analyze RL programs. Both approaches build upon static checks of a rule-based program. In the first approach we accept programs which are correct with respect to a constructive semantics while in the second approach, a stratification check is imposed. The combination of rules and reactive behaviour, together with a formal analysis of this behaviour is the main contribution of our work.