GMF: A Model Migration Case for the Transformation Tool Contest

Using a real-life evolution taken from the Graphical Modeling Framework, we invite submissions to explore ways in which model transformation and migration tools can be used to migrate models in response to metamodel adaptation.Comment: In Proceedings TTC 2011, arXiv:1111.440

Generic Model Refactorings

Many modeling languages share some common concepts and principles. For example, Java, MOF, and UML share some aspects of the concepts\ud of classes, methods, attributes, and inheritance. However, model\ud transformations such as refactorings specified for a given language\ud cannot be readily reused for another language because their related\ud metamodels may be structurally different. Our aim is to enable a\ud flexible reuse of model transformations across various metamodels.\ud Thus, in this paper, we present an approach allowing the specification\ud of generic model transformations, in particular refactorings, so\ud that they can be applied to different metamodels. Our approach relies\ud on two mechanisms: (1) an adaptation based mainly on the weaving\ud of aspects; (2) the notion of model typing, an extension of object\ud typing in the model-oriented context. We validated our approach by\ud performing some experiments that consisted of specifying three well\ud known refactorings (Encapsulate Field, Move Method, and Pull Up Method)\ud and applying each of them onto three different metamodels (Java,\ud MOF, and UML)

Transformación de modelos con Eclectic

Versión electrónica de la ponencia presentada en la XVII Jornadas de Ingeniería del Software y de Bases de Datos (JISBD’2012), celebrada en 2012 en AlmeríaLas transformaciones de modelos son un elemento clave del Desarrollo de Software Dirigido por Modelos. En los últimos años se han propuesto varios lenguajes de transformación de diferente naturaleza, siendo cada uno de ellos adecuado para un determinado tipo de tarea de transformación. Sin embargo, una transformación compleja normalmente implica abordar una serie de sub-problemas que corresponden a diferentes estilos de transformación , y por tanto no toda la transformación puede desarrollarse de forma natural en el lenguaje elegido. En esta demostración se presentará el entorno de transformación de modelos Eclectic, que trata de abordar el desarrollo de transformaciones de modelos ofreciendo una familia de lenguajes de transformación. Cada lenguaje tiene como objetivo abordar un determinado tipo de transformaciones, y está específicamente diseñado para ello. La demostración se ilustrar´a con un ejemplo de aplicación que utiliza diferentes lenguajes, se mostrar´a el entorno de desarrollo y se comentarán características de la aproximación tales como interoperabilidad entre lenguajes e integración con programas Java.Este trabajo ha sido financiado por el Ministerio de Educación y Ciencia (TIN2011-24139) y la Comunidad de Madrid (S2009/TIC-1650)

Why Just Boogie? Translating Between Intermediate Verification Languages

The verification systems Boogie and Why3 use their respective intermediate languages to generate verification conditions from high-level programs. Since the two systems support different back-end provers (such as Z3 and Alt-Ergo) and are used to encode different high-level languages (such as C# and Java), being able to translate between their intermediate languages would provide a way to reuse one system's features to verify programs meant for the other. This paper describes a translation of Boogie into WhyML (Why3's intermediate language) that preserves semantics, verifiability, and program structure to a large degree. We implemented the translation as a tool and applied it to 194 Boogie-verified programs of various sources and sizes; Why3 verified 83% of the translated programs with the same outcome as Boogie. These results indicate that the translation is often effective and practically applicable

Vers une synchronisation des modèles entre la conception d'architecture du système et la simulation multi-physique

International audienceThe design process of complex systems involves the use of different languages and tools to model and simulate systems structures and behaviors. Different models are thus used such as system models (using high level modeling tools such as SysML), multiphysics models (Modelica) and safety models (Altarica) and so on. The main consequence is a high risk of inconsistency between the different views of the system. In this context, we need to ensure the exchange between the different actors interacting in the development of a complex system and to verify the consistency between the different multi-view modeling systems. In this article, we have proposed a model synchronization methodology to detect inconsistencies between the different views of a system. This Method is composed of three steps: first, the abstraction of entry models to a common representation, second the comparison process which permits to identify the inconsistencies between different views of a system and finally the concretization that allows to manage inconsistencies. This approach is illustrated with a case study from the automotive industry, which verifies the effectiveness of this proposal to improve the cooperation between designers developing a complex system. Keywords: Multi-view Modeling / SysML / Modelica / Consistency management/ Mechatronic systems

Automated verification of model transformations based on visual contracts

The final publication is available at Springer via http://dx.doi.org/10.1007/s10515-012-0102-yModel-Driven Engineering promotes the use of models to conduct the different phases of the software development. In this way, models are transformed between different languages and notations until code is generated for the final application. Hence, the construction of correct Model-to-Model (M2M) transformations becomes a crucial aspect in this approach. Even though many languages and tools have been proposed to build and execute M2M transformations, there is scarce support to specify correctness requirements for such transformations in an implementation-independent way, i.e., irrespective of the actual transformation language used. In this paper we fill this gap by proposing a declarative language for the specification of visual contracts, enabling the verification of transformations defined with any transformation language. The verification is performed by compiling the contracts into QVT to detect disconformities of transformation results with respect to the contracts. As a proof of concept, we also report on a graphical modeling environment for the specification of contracts, and on its use for the verification of transformations in several case studies.This work has been funded by the Austrian Science Fund (FWF) under grant P21374-N13, the Spanish Ministry of Science under grants TIN2008-02081 and TIN2011-24139, and the R&D programme of the Madrid Region under project S2009/TIC-1650

A Modeling and Verification Approach to the Design of Distributed IMA Architectures Using TTEthernet

AbstractIntegrated Modular Avionics (IMA) architectures complemented with Time-Triggered Ethernet (TTEthernet) provides a strong platform to support the design and deployment of distributed avionic software systems. The complexity of the design and continuous integration of such systems can be managed using a model-based methodology. In this paper, we build on top of our extension of the AADL modeling language to model TTEthernet-based distributed systems and leverage model transformations to enable undertaking the verification of the system models produced with this methodology. In particular, we propose to transform the system models to a model suitable for a simulation with DEVS. We illustrate the proposed approach using an example of a navigation and guidance system and we use this example to show the verification of the contention-freedom property of TTEthernet schedule