Abstract Version control systems are an integral part of today's software engineering. They
facilitate the collaborative management of revisions (sequential versions) and variants …

Software companies commonly develop and maintain variants of systems, with different
feature combinations for different customers. Thus, they must cope with variability in space …

Coping with different and changing requirements leads to concurrent products (variability in
space) and subsequent revisions (variability in time). Moreover, products consist of …

When evolving software product lines, new features are added over time and existing
features are revised. Engineers also decide to merge different features or split features in …

Products and production are inherently variable. That is, the products themselves often need
to be variable—as in a car plant producing many similar, albeit not identical cars. Such …

This paper discusses the management of revisions and variants of musical works for the
context of musicological research. Domain-specific languages (DSLs) are a fundamental …

Product line engineering aims at quickly delivering individual solutions to customers by
customizing and evolving products based on a common platform. Engineers commonly …

Domain-specific languages (DSLs) offer expressive support for particular problem domains
and promise substantial gains compared to general-purpose languages (GPLs). Variability …

Software companies frequently customize and extend product lines in multiple projects
concurrently to quickly deliver solutions to customers. Engineers use a distributed and …

Music engravers nowadays use music notation software to create scores for musical works.
As is common in any creative process, many different versions of digital artifacts are created …