@Conference{Dhungana2008a,
  author = {Deepak Dhungana and Thomas Neumayer and Paul Grünbacher and Rick
	Rabiser},
  title = {Supporting Evolution in Model-Based Product Line Engineering},
  booktitle = {Proceedings 12th Int'l Conference Software Product Lines (SPLC 2008),
	Limerick, Ireland, September 8-12},
  year = {2008},
  pages = {319-328},
  publisher = {IEEE Computer Society},
  abstract = {Software maintenance and evolution are among the most challenging
	and cost-intensive activities in software engineering. This is not
	different for software product lines due to their complexity and
	long life-span. New customer requirements, technology changes and
	internal enhancements lead to the continuous evolution of a product
	line's reusable assets. Due to the size of product lines, single
	stakeholders or teams can only maintain a small part of a system
	which poses additional challenges for evolution. This paper presents
	an approach supporting product line evolution by organizing variability
	models of large-scale product lines as a set of interrelated model
	fragments defining the variability of particular parts of the system.
	The approach allows semi-automatic merging of fragments into complete
	variability models. We also provide tool support to automatically
	detect changes that would make models and the architecture inconsistent.
	Furthermore, our approach supports the co-evolution of variability
	models and their respective meta-models. We illustrate the approach
	with examples from an ongoing industry collaboration.},
  doi = {10.1109/SPLC.2008.26},
  isbn = {978-0-7695-3303-2},
  keywords = {CD Lab ASE}
}