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Automated Verification of Model Transformations in the Automotive Industry

Explore the practicality and effectiveness of automated verification tools for model transformations in the automotive sector. This study discusses the motivation, methodology, case study results, performance evaluation, and future implications of the verification approach.

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Automated Verification of Model Transformations in the Automotive Industry

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  1. Automated Verification of Model Transformations in the Automotive Industry Gehan M. K. Selim, Fabian Büttner, James R. Cordy, JuergenDingel, Shige Wang

  2. Agenda • Motivation • Objective • The Model Transformation Problem • The Verification Methodology • Case Study: Automatically Verifying the GM-2-AUTOSAR Transformation • Results • Verifying the 18 OCL Constraints • Performance of the Verification Approach • Discussion • Strengths of the Verification Approach • Weaknesses of the Verification Approach • Conclusion & Future Work

  3. Motivation • MDD • Model Transformations • Verification Are those concepts practical to use in industry ?

  4. Motivation • Industrial experiences in adopting MDD… • T. Cottenier, A. Van Den Berg, T. Elrad “The Motorola WEAVR: Model Weaving in a Large Industrial Context” AOSD 2007. • P. Mohagheghi, V. Dehlen “Where is the Proof?-A Review of Experiences from Applying MDE in Industry” ECMDA-FA 2008. • Few studies on industrial model transformations… • A. Daghsen, K. Chaaban, S. Saudrais, P. Leserf “Applying Holistic Distributed Scheduling to AUTOSAR Methodology” ERTSS 2010. • H. Giese, S. Hildebrandt, S. Neumann “Model Synchronization at Work: Keeping SysML and AUTOSAR Models Consistent” Graph Transformations & Model-Driven Engineering 2010. • G.Selim, S. Wang, J. Cordy, J. Dingel“Model Transformations for Migrating Legacy Models: An Industrial Case Study” ECMFA 2012 • Verifying industrial model transformations ??

  5. Objective [1] G. Selim, S. Wang, J. Cordy, J. Dingel "Model Transformations for Migrating Legacy Models: An Industrial Case Study", ECMFA 2012 [2] F. Büttner, M. Egea, J. Cabot, M. Gogolla “Verication of ATL Transformations Using Transformation Models and Model Finders”, ICFEM 2012

  6. The Model Transformation Problem GM Metamodel AUTOSAR Metamodel [1] G. Selim, S. Wang, J. Cordy, J. Dingel "Model Transformations for Migrating Legacy Models: An Industrial Case Study", ECMFA 2012

  7. The Verification Methodology • Transformation Model: • Elements representing : T, • OCL Constraint sets: SEM, PRE, POST Transformation Model (OCL) [1] F. Büttner, M. Egea, J. Cabot, M. Gogolla “Verication of ATL Transformations Using Transformation Models and Model Finders”, ICFEM 2012

  8. The Verification Methodology • Transformation Model: • Elements representing : T, • OCL Constraint sets: SEM, PRE, POST ATL Transformation T transform Source Metamodel Transformation Model (OCL) Target Metamodel [1] F. Büttner, M. Egea, J. Cabot, M. Gogolla “Verication of ATL Transformations Using Transformation Models and Model Finders”, ICFEM 2012

  9. The Verification Methodology • For each property , the following must be unsatisfiable: [1] M. Kuhlmann, L. Hamann, M. Gogolla “Extensive Validation of OCL Models by Integrating SAT Solving into USE” TOOLS 2011 [2] The USE Validator. available online, http://sourceforge.net/projects/useocl/les/Plugins/ModelValidator/

  10. The Verification Methodology Ecore + OCL Relational Logic Propositional Logic ATL + Ecore + OCL

  11. Case Study: Automatically Verifying the GM-2-AUTOSAR Transformation

  12. Case Study: Automatically Verifying the GM-2-AUTOSAR Transformation Automatically Generated by the Prototype Manually Formulated OCL Preconditions … ?

  13. Case Study: Automatically Verifying the GM-2-AUTOSAR Transformation Context CompositionType invCompositionType_co: self.componentsize>=1

  14. Results: Verifying the 18 OCL Constraints • 2 Multiplicity Invariants of the 18 constraints are violated • CompositionType_component • SwcToEcuMapping_component

  15. Results: Verifying the 18 OCL Constraints • CompositionType_component

  16. Results: Performance of the Verification Approach • Standard laptop (2.50 GHz, 16GB of memory) • Ran the verification prototype: • once for each constraint • for scopes up to 12 • For each scope& constraint, 2 numbers were generated: • Translation Time: Time taken to translate the relational logic representation of the transformation into propositional logic. • Constraint Solving Time: Time taken by SAT solver to solve the propositional representation of the transformation.

  17. Results: Performance of the Verification Approach

  18. Discussion: Strengths of the Verification Approach

  19. Discussion: Weaknesses of the Verification Approach

  20. Conclusion & Future Work • Demonstrated using an automated verification prototype [1] to verify industrial transformation [2] • Result: The used prototype uncovered 2 bugs ! • Performance: Verifying the transformation up to a scope of 12 was possible ! Application of automated verification to a case study was successful & practical to use in an industrial context [1] F. Büttner, M. Egea, J. Cabot, M. Gogolla “Verication of ATL Transformations Using Transformation Models and Model Finders”, ICFEM2012 [2] G. Selim, S. Wang, J. Cordy, J. Dingel "Model Transformations for Migrating Legacy Models: An Industrial Case Study", ECMFA 2012

  21. Conclusion & Future Work

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