Configurator-as-a-service: tool support for deriving software architectures at runtime

Variability in software architectures, and especially dynamic variability in software architectures, calls for tool support. The complexity involved in the variability means that tools should be able to efficiently derive architectures at runtime. Our contribution is to offer concepts and an expository instantiation of Configurator-as-a-Service (CaaS). CaaS provides integrability, separation of derivation concerns, and automation. The approach is validated with a case of social devices, where proximity-based, distributed service compositions of mobile devices are derived at runtime.