Auflistung nach Schlagwort "Meta-modeling"
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- KonferenzbeitragExtending a UML and OCL Tool for Meta-Modeling: Applications towards Model Quality Assessment(Modellierung 2018, 2018) Doan, Khanh-Hoang; Gogolla, MartinFor developing software in a model-driven style, meta- and multi-level modeling is currently gaining more and more attention. In this contribution, we propose an approach to extend a two-level modeling tool to three-level modeling by adding a meta-model at the topmost level. Standard OCL does not support reflective constraints, i.e., constraints concerning properties of the model like the depth of inheritance. By adding an auto-generated instance of the topmost level to the middle level, we can offer an option for writing reflective constraints and queries. We apply the extension to demonstrate the usefulness of meta-modeling for model querying and model quality assessment. A first proposal towards level-crossing constraints is also put forward.
- ZeitschriftenartikelMehrebenen-Modellierung(Wirtschaftsinformatik: Vol. 56, No. 6, 2014) Frank, UlrichDomänenspezifische Modellierungssprachen (engl.: “domain-specific modeling languages”, DSMLs) versprechen deutliche Vorteile gegenüber universellen Modellierungssprachen. Ihr Entwurf ist allerdings mit einer essentiellen Herausforderung verbunden. Um ansehnliche Skaleneffekte zu erreichen, empfiehlt sich die Entwicklung von DSMLs, die in einer größeren Nutzungsbandbreite einsetzbar sind. Gleichzeitig spricht der Gewinn an Modellierungsproduktivität im Einzelfall für Sprachkonzepte, die an individuelle Anforderungen angepasst sind. In dem vorliegenden Beitrag wird ein neuartiger Ansatz zur konzeptuellen Modellierung wie auch zur Konstruktion von Informationssystemen präsentiert, der durch die faktische Nutzung von Fachsprachen inspiriert ist – die Mehrebenen-Modellierung. Im Unterschied zu traditionellen Spracharchitekturen wie der „Meta Object Facility“ (MOF) basiert er auf einer rekursiven Architektur, die eine beliebige Zahl von Klassifikationsebenen ermöglicht und dadurch den Entwurf von Sprachhierarchien – von einer Referenz-DSML bis hin zu „lokalen“ DSMLs – erlaubt. Auf diese Weise wird nicht nur der essentielle Konflikt des Entwurfs von DSMLs deutlich entschärft, sondern auch die Wiederverwendung und Integration von Software-Komponenten im Allgemeinen gefördert. Zudem ermöglicht der Ansatz die Reduktion von Modellkomplexität, indem er die Dichotomie von Spezialisierung und Instanzierung teilweise aufhebt. Darüber hinaus integriert er eine Metamodellierungssprache mit dem Metamodell einer Metaprogrammiersprache, wodurch ausführbare Modelle ermöglicht werden. Die Spezifikation der Spracharchitektur wird ergänzt durch die Darstellung von Anwendungsszenarien, die die Potentiale der Mehrebenen-Modellierung verdeutlichen, sowie eine kritische Betrachtung ihrer Besonderheiten.AbstractDomain-specific modeling languages (DSMLs) promise clear advantages over general-purpose modeling languages. However, their design poses a fundamental challenge. While economies of scale advocate the development of DSMLs that can be used in a wide range of cases, modeling productivity demands more specific language concepts tuned to individual requirements. Inspired by the actual use of technical languages, deutsch: “Fachsprachen” this paper presents a novel multilevel modeling approach to conceptual modeling and to the design of information systems. Unlike traditional language architectures such as Meta Object Facility (MOF), it features a recursive architecture that allows for an arbitrary number of classification levels and, hence, for the design of hierarchies of DSMLs ranging from reference DSMLs to “local” DSMLs. It can not only diminish the conflict inherent in designing DSMLs, but enables the reuse and integration of software artifacts in general. It also helps reduce modeling complexity by relaxing the rigid dichotomy between specialization and instantiation. Furthermore, it integrates a meta-modeling language with a metamodel of a reflective meta-programming language, thereby allowing for executable models. The specification of the language architecture is supplemented by the description of use scenarios that illustrate the potential of multilevel modeling and a critical discussion of its peculiarities.
- ZeitschriftenartikelMultilevel Modeling(Business & Information Systems Engineering: Vol. 6, No. 6, 2014) Frank, UlrichDomain-specific modeling languages (DSMLs) promise clear advantages over general-purpose modeling languages. However, their design poses a fundamental challenge. While economies of scale advocate the development of DSMLs that can be used in a wide range of cases, modeling productivity demands more specific language concepts tuned to individual requirements. Inspired by the actual use of technical languages (German: “Fachsprachen”), this paper presents a novel multilevel modeling approach to conceptual modeling and to the design of information systems. Unlike traditional language architectures such as Meta Object Facility (MOF), it features a recursive architecture that allows for an arbitrary number of classification levels and, hence, for the design of hierarchies of DSMLs ranging from reference DSMLs to “local” DSMLs. It can not only diminish the conflict inherent in designing DSMLs, but enables the reuse and integration of software artifacts in general. It also helps reduce modeling complexity by relaxing the rigid dichotomy between specialization and instantiation. Furthermore, it integrates a meta-modeling language with a metamodel of a reflective meta-programming language, thereby allowing for executable models. The specification of the language architecture is supplemented by the description of use scenarios that illustrate the potential of multilevel modeling and a critical discussion of its peculiarities.
- ZeitschriftenartikelStandardization of Forms in Governments(Business & Information Systems Engineering: Vol. 62, No. 6, 2020) Scholta, Hendrik; Balta, Dian; Räckers, Michael; Becker, Jörg; Krcmar, HelmutForms are central interfaces for information exchange between a government and its citizens. As a way to translate laws into practice, forms are an essential part facilitating this exchange. Unfortunately, forms often require substantial development effort to ensure they comply with legal requirements, with the result that citizens often describe them as highly complex. Standardization of forms through reference modeling would help to minimize governments’ effort by reusing elements and would reduce complexity for citizens by providing a unified representation of information. The article contributes a meta-model for a modeling language that can be used in representing reference models for forms. It follows a design science research approach to elicit form structure and editorial process requirements and to iteratively design the meta-model. The paper demonstrates and evaluates the meta-model using focus groups and application in three case studies. It extends research on standardization to reference modeling and government forms.