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Auflistung nach Autor:in "Burger, Erik"

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  • Textdokument
    Automotive Systems Modelling with Vitruvius
    (INFORMATIK 2017, 2017) Mazkatli, Manar; Burger, Erik; Koziolek, Anne; Reussner, Ralf H.
    Model-driven technologies are widely used in the development of systems in the automotive domain. Although modelling tools and code generation increase the development speed and the quality of the developed system in general, the availability of several modelling languages for different stages of the development process also introduces additional problems: Developers use several models to describe the same system on different levels of abstraction, which serve as documentation, basis for code generation, but also for model-based analyses of system properties such as security, performance, or reliability. If models are modified independently, inconsistencies can arise, which lead to incorrect results of these analyses, complicate the implementation of new features, and create errors at later stages in development that are costly to fix. In this paper, we apply the model-based Vitruvius approach, which preserves consistency in heterogeneous modelling environments, to a scenario of automotive systems development. The scenario includes the modelling standards SysML, AMALTHEA and ASCET. We show, at the example of an onboard controlling unit, how the Vitruvius approach can be used to increase consistency in automotive system development and reduce the accidental complexity that arises for developers who have to work with heterogeneous modelling languages.
  • Konferenzbeitrag
    A change metamodel for the evolution of MOF-based metamodels
    (Modellierung 2010, 2010) Burger, Erik; Gruschko, Boris
    The evolution of software systems often produces incompatibilities with existing data and applications. To prevent incompatibilities, changes have to be well-planned, and developers should know the impact of changes on a software system. This consideration also applies to the field of model-driven development, where changes occur with the modification of the underlying metamodels. Models that are instantiated from an earlier metamodel version may not be valid instances of the new version of a metamodel. In contrast to other metamodeling standards like the Eclipse Modeling Framework (EMF), no classification of metamodel changes has been performed yet for the Meta Object Facility (MOF). The contribution of this paper is the evaluation of the impact of metamodel changes on models. For the formalisation of changes to MOF-based metamodels, a Change Metamodel is introduced to describe the transformation of one version of a metamodel to another. The changes are then classifed by their impact on the compatibility to existing model data. The classification is formalised using OCL constraints. The Change Metamodel and the change classifications presented in this paper lay the foundation for the implemention of a mechanism that allows metamodel editors to estimate the impact of metamodel changes semi-automatically.
  • Konferenzbeitrag
    Difference-based Conformance Checking for Ecore Metamodels
    (Modellierung 2014, 2014) Burger, Erik; Toshovski, Aleksandar
    During modern model-driven development processes, generators and higherorder transformations are used to create metamodels with short life cycles. Since these metamodels often differ from each other only in small parts, instances as well as metamodels may be re-used if the difference between them does not lead to a violation of instance conformance. Existing co-evolution approaches describe this conformance based on change operators to a metamodel. Thus, they require that changes to the metamodels are carried out using special editors. To use this conformance for arbitrarily generated metamodels, we present a conformance validator for Ecore metamodels that is based on difference-based analysis. The validator has been implemented as a plug-in for the Eclipse framework. We demonstrate the completeness of our approach by covering state-of-the-art co-evolution change operators.
  • Konferenzbeitrag
    Towards a tool-oriented taxonomy of view-based modelling
    (Modellierung 2012, 2012) Goldschmidt, Thomas; Becker, Steffen; Burger, Erik
    The separation of view and model is one of the key concepts of Model- Driven Engineering (MDE). Having different views on a central model helps modellers to focus on specific aspects. Approaches for the creation of Domain-Specific Modelling Languages (DSML) allow language engineers to define languages tailored for specific problems. To be able to build DSMLs that also benefit from view-based modelling a common understanding of the properties of both paradigms is required. However, research has not yet considered the combination of both paradigms, namely view-based domain specific modelling to a larger extent. Especially, a comprehensive analysis of a view's properties (e.g., partial, overlapping, editable, persistent, etc.) has not been conducted. Thus, it is also still unclear to which extent view-based modelling is understood by current DSML approaches and what a common understanding if this paradigm is. In this paper, we explore view-based modelling in a tool-oriented way. Furthermore, we analyse the properties of the view-based domain-specific modelling concept and provide a feature-based classification of these properties.