Use Of Model Transformation For The Formal
Analysis Of Railway Interlocking Models
Author(s)
T. Xu, O. M. Santos, X. Ge & J. Woodcock
Abstract
Model transformation is at the heart of Model-Driven Engineering (MDE). In
MDE, the system model is specified using a modelling language, such as UML
(Unified Modelling Language) or a DSL (Domain-Specific Language). Once a
model is specified, executable code for a computing platform can be
automatically generated by means of model transformation (code generation).
Besides the support for incremental model development, MDE also enables the
formal verification of system properties. In the context of safety-critical systems,
such as railway interlockings, the system model (e.g., specified in terms of
UML) can be translated to a formal (mathematical) language more amendable to
rigorous analysis. This paper presents a model transformation that takes a
railway interlocking model (specified in Executable UML (xUML)) as input and
outputs a formal model that can be mathematically analysed. This can potentially
bridge the gap between well-known modelling languages (such as xUML) and
formal languages, which facilitates the systematic development of safety-critical
systems in terms of MDE. A small xUML railway interlocking model is used to
illustrate the proposed method.
Keywords: railway interlocking systems, model driven engineering (MDE),
executable UML (xUML), formal languages, formal analysis.
1 Introduction
Railway interlocking plays a very important role in establishing high safety for
train operations in a railway system, and protecting passengers and equipment
from damage. Due to its life-critical application, a rigorous verification phase is
Keywords
railway interlocking systems, model driven engineering (MDE),executable UML (xUML), formal languages, formal analysis
Related Book
Other papers in this volume
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