As Domain-Specific Modeling Languages (DSML) become more widespread, it is now possible for non-computer scientists to design complex systems. Not only do DSMLs make modeling more accessible to domain experts, they also improve their efficiency. Using such models, the problem of their maintenance and evolution arises, with common software engineering issues, such as reversibility and traceability of developments. In this article we present the integration of a collaborative edition process into a model-driven engineering (MDE) simulation platform defining its own DSML, which includes a serialization procedure. Our novel approach defines a collaborative work and version control process. This process uses the concrete textual syntax defined by this DSML, which allows us to use the features of existing Version Control Systems (VCS) to work with serialized models, and helps calculate the differences between two versions of a model, merge versions of these models, and detect merge conflicts.

Most of today's mobile internet devices contain facilities to display maps of the user's surroundings with points of interest embedded into the map. Other researchers have already explored complementary, egocentric visualizations of these points of interest using mobile mixed reality. Being able to perceive the point of interest in detail within the user's current context is desirable, however, it is challenging to display off-screen or occluded points of interest. We have designed and implemented space-distorting visualizations to address these situations. While this class of visualizations has been extensively studied in information visualization, we are not aware of any attempts to apply them to augmented or mixed reality. Based on the informal user feedback that we have gathered, we have performed several iterations on our visualizations. We hope that our initial results can inspire other researchers to also investigate space-distorting visualizations for mixed and augmented reality.

Throughout the last decade, mobile information browsing has become a widely-adopted practice. Most of today's mobile Internet devices contain facilities to display maps of the user's surroundings with points of interest embedded into the map. Other researchers have already explored complementary, egocentric visualizations of these points of interest using mobile mixed reality. However, it is challenging to display off-screen or occluded points of interest. We have designed and implemented space-distorting visualizations to address these situations. Based on the informal user feedback that we have gathered, we have performed several iterations on our visualizations. We hope that our initial results can inspire other researchers to also investigate space-distorting visualizations for mixed and augmented reality.