Diversity is prevalent in modern software systems to facilitate adapting the software to
customer requirements or the execution environment. Diversity has an impact on all phases …

After more than 40 years of life, software evolution should be considered as a mature field.
However, despite such a long history, many research questions still remain open, and …

The ability to evolve software rapidly and reliably is a major challenge for software
engineering. In this introductory chapter we start with a historic overview of the research …

Many software production processes advocate rigorous development testing alongside
functional code writing, which implies that both test code and production code should co …

Software updates typically require stop** and restarting an application, but many systems
cannot afford to halt service, or would prefer not to. Dynamic software updating (DSU) …

Abstract Model-based development promises to increase productivity by offering modeling
languages tailored to a specific domain. Such modeling languages are typically defined by a …

Engineering software systems is a multidisciplinary activity, whereby a number of artifacts
must be created-and maintained-synchronously. In this paper we investigate whether …

When identifying the origin of software bugs, many studies assume that “a bug was
introduced by the lines of code that were modified to fix it”. However, this assumption does …

Many software processes advocate that the test code should co-evolve with the production
code. Prior work usually studies such co-evolution based on production-test co-evolution …

Economically sustainable software systems must be able to cost-effectively evolve in
response to changes in their environment, their usage profile, and business demands …