@proceedings {1914,
	title = {Practices and Perceptions of UML Use in Open Source Projects},
	year = {2017},
	month = {05/2017},
	pages = {203-212},
	abstract = {Context: Open Source is getting more and more
collaborative with industry. At the same time, modeling is today
playing a crucial role in development of, e.g., safety critical
software. Goal: However, there is a lack of research about the
use of modeling in Open Source. Our goal is to shed some
light into the motivation and benefits of the use of modeling
and its use within project teams. Method: In this study, we
perform a survey among Open Source developers. We focus on
projects that use the Unified Modeling Language (UML) as a
representative for software modeling. Results: We received 485
answers of contributors of 458 different Open Source projects.
Conclusion: Collaboration seems to be the most important
motivation for using UML. It benefits new contributors and
contributors who do not create models. Teams use UML during
communication and planning of joint implementation efforts.},
	keywords = {architecture documentation, communication, effectiveness of UML, github, MOTIVATION, UML},
	author = {Truong Ho-Quang and Hebig, Regina and Gregorio Robles and Chaudron, Michel R. V. and Miguel Angel Fernandez}
}
@conference {1858,
	title = {The quest for open source projects that use UML},
	booktitle = {Proceedings of the ACM/IEEE 19th International Conference on Model Driven Engineering Languages and Systems - MODELS {\textquoteright}16},
	year = {2016},
	pages = {173 - 183},
	publisher = {ACM Press},
	organization = {ACM Press},
	address = {New York, New York, USA},
	abstract = {Context: While industrial use of UML was studied intensely,little is known about UML use in Free/Open Source Soft-ware (FOSS) projects. Goal: We aim at systematically mining GitHub projects to answer the question when mod-els, if used, are created and updated throughout the whole project{\textquoteright}s life-span. Method: We present a semi-automated approach to collect UML stored in images, .xmi, and .uml files and scanned ten percent of all GitHub projects (1.24million). Our focus was on number and role of contributors that created/updated models and the time span during which this happened. Results: We identified and studied 21 316 UML diagrams within 3 295 projects. Conclusion: Creating/updating of UML happens most often during a very short phase at the project start. For 12\% of the models duplicates were found, which are in average spread across 1.88 projects. Finally, we contribute a list of GitHub projects that include UML files.},
	isbn = {9781450343213},
	doi = {10.1145/2976767.2976778},
	url = {https://www.researchgate.net/publication/308869547_The_quest_for_open_source_projects_that_use_UML_mining_GitHub},
	author = {fernandez, miguel angel and Hebig, Regina and Quang, Truong Ho and Chaudron, Michel R. V.}
}
