Software reuse is the process of creating software systems from existing software rather than building software systems from scratch.
He analyzes software reuse technologies according to four dimensions:
See also I. Jacobson, M. Griss and P. Jonsson: Software Reuse: Architecture, Process and Organization for Business Success. Addison-Wesly, 1997. (481 pp.)
Emphasizes Application Family Engineering, which then provides the infrastructure for Application System Engineering -- building applications from reusable components.
The book does not yet mention SoftwareProductLines, but it does introduce all relevant concepts.
Does not explicitly cover the notion of DomainEngineering -- this is covered as just an aspect of application family engineering.