As a software project ages, its source code is modified to add new features, restructure
existing ones, and fix defects. These source code changes often induce changes in the build …

In this invited paper I focus on the difficulties of maintaining and evolving software systems
that are part of a larger ecosystem. While not every software system falls under this category …

Software engineering projects are now more than ever a community effort. In the recent past,
researchers have shown that their success may not only depend on source code quality, but …

Many open-source software projects depend on a few core developers, who take over both
the bulk of coordination and programming tasks. They are supported by peripheral …

Software engineering projects are now more than ever a community effort. In the recent past,
researchers have shown that their success not only depends on source code quality, but …

During software product development, the combination of digital resources (such as
application programming interfaces and software development kits) establishes loose and …

Build systems orchestrate how human-readable source code is translated into executable
programs. In a software project, source code changes can induce changes in the build …

Conway's law, also called the mirroring hypothesis, predicts that a development
organization will inevitably design systems that mirror its organizational communication …

Developer social networks (DSNs) are a tool for the analysis of community structures and
collaborations between developers in software projects and software ecosystems. Within …

Continuous integration at scale is costly but essential to software development. Various test
optimization techniques including test selection and prioritization aim to reduce the cost …