Actors: a model of concurrent computation in distributed systems
Actors: a model of concurrent computation in distributed systems
Composable Semantic Models for Actor Theories
Higher-Order and Symbolic Computation
Revised Lectures from the International Symposium on Compositionality: The Significant Difference
COMPOS'97 Revised Lectures from the International Symposium on Compositionality: The Significant Difference
Composition: A Way to Make Proofs Harder
COMPOS'97 Revised Lectures from the International Symposium on Compositionality: The Significant Difference
HIERARCHICAL CORRECTNESS PROOFS FOR DISTRIBUTED ALGORITHMS
HIERARCHICAL CORRECTNESS PROOFS FOR DISTRIBUTED ALGORITHMS
Reo: a channel-based coordination model for component composition
Mathematical Structures in Computer Science
Formal Methods for Components and Objects: First International Symposium, Fmco 2002, Leiden, the Netherlands, November 2002: Revised Lectures (Lecture Notes in Computer Science, 2852)
A Front-End Tool for Automated Abstraction and Modular Verification of Actor-Based Models
ACSD '04 Proceedings of the Fourth International Conference on Application of Concurrency to System Design
Extended Rebeca: A Component-Based Actor Language with Synchronous Message Passing
ACSD '05 Proceedings of the Fifth International Conference on Application of Concurrency to System Design
Modere: the model-checking engine of Rebeca
Proceedings of the 2006 ACM symposium on Applied computing
Modeling component connectors in Reo by constraint automata
Science of Computer Programming - Special issue on second international workshop on foundations of coordination languages and software architectures (FOCLASA'03)
Modeling and Verification of Reactive Systems using Rebeca
Fundamenta Informaticae
Efficient symmetry reduction for an actor-based model
ICDCIT'05 Proceedings of the Second international conference on Distributed Computing and Internet Technology
A Uniform Framework for Modeling and Verifying Components and Connectors
COORDINATION '09 Proceedings of the 11th International Conference on Coordination Models and Languages
Rebeca: theory, applications, and tools
FMCO'06 Proceedings of the 5th international conference on Formal methods for components and objects
Symbolic execution of Reo circuits using constraint automata
Science of Computer Programming
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Rebeca is an actor-based language which has been successfully applied to model concurrent and distributed systems. The semantics of Rebeca in labeled transition system is not compositional. In this paper, we investigate the possibility of mapping Rebeca models into a coordination language, Reo, and present a natural mapping that provides a compositional semantics of Rebeca. To this end, we consider reactive objects in Rebeca as components in Reo, and specify their behavior using constraint automata as black-box components within Reo circuits. Modeling coordination and communication among reactive objects as Reo circuits, and the behavior of reactive objects as constraint automata, provides a compositional semantics for Rebeca. Although the result is a compositional model, its visual representation in Reo shows very well that it still reflects the tight coupling inherent in the communication mechanism of object-based paradigms, whereby the real control and coordination is built into the code of the reactive objects themselves. We describe an alternative design that overcomes this deficiency. This illustrates the differences between objects and components, and the challenges in moving from object-based to component-based designs.