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Chapter 5. Verification and Validation Development of train control meta model Development of model constraints Design and implementation of code generators for the meta model Design of domain framework Definition of model constraints Dynamic Testing (of gen. code) Development of model of train control standard Implementation of domain framework Model Constraint Checking Dynamic Testing Design and Implementation of Verification & Validation Suite Verification Validation time Figure 5.2.: Software development life cycle for DSM in the railway domain Requirements Specifications [11]. To directly integrate verification and validation in the development process, the original tool chain for the GOPPRR meta meta model extension (see Section 4.6) has to be extended, which is shown in Figure 5.3. The generator for functional testing [78, p. 316] refers to a concrete dynamic testing category that should be applied. It must be emphasised that this extended tool chain still is very general since it does not yet take the domain framework into account, which always heavily depends on the concrete meta model. Furthermore, the code generation also depends on the domain framework because it builds the link between models and the framework. Thus, a complete or rather more concrete tool chain is given in Part III for a certain example in form of a case study. 5.4. Conclusion This chapter introduced standards for safety-critical systems and discussed the issues for software development of such systems. Besides standards directly related to the domain of train control systems, also a general standard in form of the DIN EN 61508 was exemplary introduced. The DO-178B for airborne systems was used to additionally introduce principles and techniques for a complete different problem domain. Since all standards are life cycle oriented, a specialised software life cycle was developed, which directly integrates the development of a DSL for a certain train control standards in general. Also, considerations for the development as FLOSS were taken into account. The general tool chain for the GOPPRR meta model was extended about the integration of verification and validation according to the considerations related to the standards. Nevertheless, the integration of the software life cycle for DSM into the life cycle of the EN 50128 cannot be realised in the case study because it would exceed the limits of a dissertation. 62
5.4. Conclusion MetaEdit+ GOPRR MetaEdit+ Workbench openETCS Meta Model GOPPRR Conceretwe Syntax Meta Model MetaEdit+ Modeller openETCS Model openETCS Concrete Syntax Model GOPPRR Generator (MERL) GOPPRR XML File OCL File openETCS Generator GOPPRR Transformer GOPPRR Abstract Syntax Model Build Generator VM Generator C++ Generator Constraint Checker Build Configuration VM Configuration File(s) Source Code Functional Test Cases Constraint Report V&V Suite Functional Testing Validation Figure 5.3.: Extended GOPPRR software development tool chain with V&V 63
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Open Source Software for Train Cont
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Datum des Promotionskolloquiums: 21
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Acknowledgments I would like to tha
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Abstract This document describes th
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Contents 3.3.3. Rascal . . . . . .
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Contents 8.4. Behavioural Design .
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Contents D.3. Domain Framework Mode
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List of Figures 6.4. Simple CORBA u
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List of Figures 10.27. General read
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Chapter 1. Introduction Railway Con
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Chapter 1. Introduction MontiCore M
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Chapter 1. Introduction ERTMS Forma
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Part I. Background 9
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Chapter 10. openETCS Model The purp
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Chapter 10. openETCS Model be expla
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Chapter 10. openETCS Model 10.4.4.
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11 openETCS Simulation Generally, a
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11.3. Simulation Model Figure 11.6.
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11.3. Simulation Model 11.3.2. CDMI
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11.3. Simulation Model Figure 11.13
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11.6. Conclusion about warnings, fa
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Chapter 12. Conclusion and Outlook
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Part IV. Appendix 241
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Appendix A. GOPPRR to MOF Transform
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Appendix B. openETCS Meta Model Con
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DopenETCS Domain Framework D.1. Dom
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D.2. Domain Framework Source Code 8
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D.3. Domain Framework Model 32 m_pT
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Appendix E. openETCS Generator 39 <
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Appendix E. openETCS Generator 200
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Appendix E. openETCS Generator 46 4
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FMetaEdit+ Generators F.1. GOPPRR X
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GopenETCS Unit Testing G.1. Unit Te
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Appendix H. openETCS Simulation 14
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Glossary ANTLR ANother Tool for Lan
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Glossary EVC An European Vital Comp
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Glossary OEM An original equipment
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Glossary XML The Extensible Markup
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Bibliography [12] “EN 50128 - Rai
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Bibliography [39] ——, ““Ope
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Bibliography [69] T. J. Parr and R.
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Index Artefact, 51 Automatic train
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Index Linux, 149 Memory management,
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