Summary of contribution (translated from German):
“This paper presents XModelerML©, a language development, modeling, and execution environment. XModelerML© enables the joint development of languages, models, and executable programs. Although not initially intended for use in education, it soon became clear that the collaborative editing of modeling languages, models, and their instances could also be beneficially applied in modeling education. Therefore, a dedicated UML version of XModelerML© was initially developed, in which concepts of multi-level modeling were hidden and the UML notation was adopted. In addition, interactive learning modules were integrated. Later, the UML mode was integrated into XModelerML©, enabling a seamless transition from object models to DSML and ultimately to multi-level models. This paper focuses primarily on illustrating the comprehensive use of XModelerML© in modeling education.”