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Techniques for modelling and verifying railway interlockings

James, P, Moller, F, Nguyen, HN, Roggenbach, M, Schneider, S and Treharne, H (2014) Techniques for modelling and verifying railway interlockings International Journal on Software Tools for Technology Transfer, 16 (6). pp. 685-711.

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We describe a novel framework for modelling railway interlockings which has been developed in conjunction with railway engineers. The modelling language used is CSP(Formula presented.)B. Beyond the modelling we present a variety of abstraction techniques which make the analysis of medium- to large-scale networks feasible. The paper notably introduces a covering technique that allows railway scheme plans to be decomposed into a set of smaller scheme plans. The finitisation and topological abstraction techniques are extended from previous work and are given formal foundations. All three techniques are applicable to other modelling frameworks besides CSP(Formula presented.)B. Being able to apply abstractions and simplifications on the domain model before performing model checking is the key strength of our approach. We demonstrate the use of the framework on a real-life, medium-size scheme plan.

Item Type: Article
Divisions : Faculty of Engineering and Physical Sciences > Computing Science
Authors :
James, P
Moller, F
Nguyen, HN
Roggenbach, M
Schneider, S
Treharne, H
Date : 15 October 2014
DOI : 10.1007/s10009-014-0304-7
Additional Information : The original publication is available at
Depositing User : Symplectic Elements
Date Deposited : 28 Jan 2015 10:50
Last Modified : 15 Mar 2015 02:08

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