Design & analysis of fault tolerant digital systems
Design & analysis of fault tolerant digital systems
The temporal logic of reactive and concurrent systems
The temporal logic of reactive and concurrent systems
Object-Z: a specification language advocated for the description of standards
Computer Standards & Interfaces - Special issue on formal description techniques
Coloured Petri nets: basic concepts, analysis methods and practical use, vol. 2
Coloured Petri nets: basic concepts, analysis methods and practical use, vol. 2
Object Orientation in Z
Formal Specification in Collaborative Design of Critical Software Tools
HASE '98 The 3rd IEEE International Symposium on High-Assurance Systems Engineering
Combining Various Solution Techniques for Dynamic Fault Tree Analysis of Computer Systems
HASE '98 The 3rd IEEE International Symposium on High-Assurance Systems Engineering
Exploiting Petri Nets to Support Fault Tree Based Dependability Analysis
PNPM '99 Proceedings of the The 8th International Workshop on Petri Nets and Performance Models
Formal Semantics for Computational Engineering: A Case Study on Dynamic Fault Trees
ISSRE '00 Proceedings of the 11th International Symposium on Software Reliability Engineering
Model Checking Object-Z Classes: Some Experiments with FDR
APSEC '01 Proceedings of the Eighth Asia-Pacific on Software Engineering Conference
A new approach to modeling the system reliability: dynamic reliability block diagrams
RAMS '06 Proceedings of the RAMS '06. Annual Reliability and Maintainability Symposium, 2006.
CPN tools for editing, simulating, and analysing coloured Petri nets
ICATPN'03 Proceedings of the 24th international conference on Applications and theory of Petri nets
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With the rapid advances in computer science and technology, critical computer-based systems, such as those in aerospace, military, and power industries exhibit more complex dependent and dynamic behaviors, which cannot be fully captured by existing reliability modeling tools. In this paper, we introduce a new reliability modeling tool, called dynamic reliability block diagrams (DRBD), for modeling dynamic relationships between components, such as state dependency and redundancy. We give formal semantics for some key DRBD constructs using Object-Z formalism. In order to verify and validate the correctness of a DRBD model, we propose to convert a DRBD model into a colored Petri net (CPN), and use an existing Petri net tool, called CPN Tools, to analyze and verify dynamic system behavioral properties. Our case study and experimental results show that DRBD provides a powerful tool for system reliability modeling, and our proposed verification approach can effectively ensure the correct design of DRBD reliability models for complex and large-scale computer-based systems.