4,725 research outputs found
Model-based dependability analysis : state-of-the-art, challenges and future outlook
Abstract: Over the past two decades, the study of model-based dependability analysis has gathered significant research interest. Different approaches have been developed to automate and address various limitations of classical dependability techniques to contend with the increasing complexity and challenges of modern safety-critical system. Two leading paradigms have emerged, one which constructs predictive system failure models from component failure models compositionally using the topology of the system. The other utilizes design models - typically state automata - to explore system behaviour through fault injection. This paper reviews a number of prominent techniques under these two paradigms, and provides an insight into their working mechanism, applicability, strengths and challenges, as well as recent developments within these fields. We also discuss the emerging trends on integrated approaches and advanced analysis capabilities. Lastly, we outline the future outlook for model-based dependability analysis
A bibliography on formal methods for system specification, design and validation
Literature on the specification, design, verification, testing, and evaluation of avionics systems was surveyed, providing 655 citations. Journal papers, conference papers, and technical reports are included. Manual and computer-based methods were employed. Keywords used in the online search are listed
Analysis of Petri Nets and Transition Systems
This paper describes a stand-alone, no-frills tool supporting the analysis of
(labelled) place/transition Petri nets and the synthesis of labelled transition
systems into Petri nets. It is implemented as a collection of independent,
dedicated algorithms which have been designed to operate modularly, portably,
extensibly, and efficiently.Comment: In Proceedings ICE 2015, arXiv:1508.0459
Membrane Systems and Petri Net Synthesis
Automated synthesis from behavioural specifications is an attractive and
powerful way of constructing concurrent systems. Here we focus on the problem
of synthesising a membrane system from a behavioural specification given in the
form of a transition system which specifies the desired state space of the
system to be constructed. We demonstrate how a Petri net solution to this
problem, based on the notion of region of a transition system, yields a method
of automated synthesis of membrane systems from state spaces.Comment: In Proceedings MeCBIC 2012, arXiv:1211.347
Generic Pipelined Processor Modeling and High Performance Cycle-Accurate Simulator Generation
Detailed modeling of processors and high performance cycle-accurate
simulators are essential for today's hardware and software design. These
problems are challenging enough by themselves and have seen many previous
research efforts. Addressing both simultaneously is even more challenging, with
many existing approaches focusing on one over another. In this paper, we
propose the Reduced Colored Petri Net (RCPN) model that has two advantages:
first, it offers a very simple and intuitive way of modeling pipelined
processors; second, it can generate high performance cycle-accurate simulators.
RCPN benefits from all the useful features of Colored Petri Nets without
suffering from their exponential growth in complexity. RCPN processor models
are very intuitive since they are a mirror image of the processor pipeline
block diagram. Furthermore, in our experiments on the generated cycle-accurate
simulators for XScale and StrongArm processor models, we achieved an order of
magnitude (~15 times) speedup over the popular SimpleScalar ARM simulator.Comment: Submitted on behalf of EDAA (http://www.edaa.com/
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