Keywords: Model repository, Dataset, UML, Open models, Curation, Community, Education, Machine learning
Astract: Datasets of Unified Modeling Language (UML) models are becoming increasingly valuable for education, empirical research, and tool development in model-driven engineering (MDE) and conceptual modeling. In recent years, several datasets have emerged - mostly compiled through automated crawling of open platforms such as GitHub and GenMyModel. While these efforts have improved access to real-world modeling artifacts, the resulting collections often suffer from serious quality issues: they include syntactically invalid models, semantically incorrect structures, and placeholder or dummy content. Moreover, most models are not accompanied by textual domain descriptions, which are essential for understanding the intent behind the model and assessing its semantic soundness. Therefore these model datasets are far from ideal as a source for modeling exercises or empirical MDE research. This paper presents an initial step toward a community-curated golden dataset of UML models, designed to address these limitations. Our contribution includes i) a curated set of UML models, each paired with a natural language description of the modeled domain requirements, ii) a publicly accessible web platform for exploring and querying the dataset, and iii) a structured process for community-based contribution and evaluation to support sustainable growth and quality assurance of the dataset. By fostering community involvement and providing high-quality, semantically grounded models, this work lays the foundation for a widely accepted benchmark dataset in UML-based research and education.

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Astract: This textbook mainly addresses beginners and readers with a basic knowledge of object-oriented programming languages like Java or C#, but with little or no modeling or software engineering experience - thus reflecting the majority of students in introductory courses at universities. Using UML, it introduces basic modeling concepts in a highly precise manner, while refraining from the interpretation of rare special cases. After a brief explanation of why modeling is an indispensable part of software development, the authors introduce the individual diagram types of UML (the class and object diagram, the sequence diagram, the state machine diagram, the activity diagram, and the use case diagram), as well as their interrelationships, in a step-by-step manner. The topics covered include not only the syntax and the semantics of the individual language elements, but also pragmatic aspects, i.e., how to use them wisely at various stages in the software development process. To this end, the work is complemented with examples that were carefully selected for their educational and illustrative value. Overall, the book provides a solid foundation and deeper understanding of the most important object-oriented modeling concepts and their application in software development. An additional website (www.uml.ac.at) offers a complete set of slides to aid in teaching the contents of the book, exercises and further e-learning material.

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Astract: We steadily aim at improving our first year´s university course Introduction to Object-Oriented Modelling. To that end we explore how technological teaching support may be used to extend the classical classroom experience for the students. For several years, we used Web-based out-of-the-box e-learning tools for providing additional teaching support. This solution works well, but has some severe restrictions. In this paper, we show how to overcome these restrictions with a custom implementation. Further, we are now starting to explore mobile facilities as offered by smartphone Apps as well as social media facilities in order to enhance the learning experience in our modelling course. We report on our first experiences with these kinds of technologies.

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Astract: Wozu UML @ Classroom? . Für erste Einblicke in die Grundlagen der objektorientierten Modellierung. . Für einen raschen und erfolgreichen Einstieg in die Welt der UML. . Für einen verständlichen Überblick über die Konzepte von UML. . Für ein effektives und effizientes Erlernen der grafischen Notation und Regeln von UML. . Für das Kennenlernen der wichtigsten UMLDiagramme: Anwendungsfalldiagramm, Klassendiagramm, Zustandsdiagramm, Sequenzdiagramm und Aktivitätsdiagramm. . Für ein besseres Verständnis des Zusammenspiels der verschiedenen Diagramme. Profitieren Sie von jahrelanger Erfahrung mit der UML in Lehre und Forschung!