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Lecture Notes in Computer Science
Understanding the challenges faced by real projects in evolving variability models, is a prerequisite for providing adequate support for such undertakings. We study the evolution of a model describing features and configurations in a large product line-the Linux kernel variability model. We analyze this evolution quantitatively and qualitatively. Our primary finding is that the Linux kernel model appears to evolve surprisingly smoothly. In the analyzed period, the number of features haddoi:10.1007/978-3-642-15579-6_10 fatcat:gedqyktm4bd6zhlpqxp557ryjy