  Background: Nowadays, regulatory requirements engineering (regulatory RE)
faces challenges of interdisciplinary nature that cannot be tackled due to
existing research gaps. Aims: We envision an approach to solve some of the
challenges related to the nature and complexity of regulatory requirements, the
necessity for domain knowledge, and the involvement of legal experts in
regulatory RE. Method: We suggest the qualitative analysis of regulatory texts
combined with the further case study to develop an empirical foundation for our
research. Results: We outline our vision for the application of extended
artefact-based modeling for regulatory RE. Conclusions: Empirical methodology
is an essential instrument to address interdisciplinarity and complexity in
regulatory RE. Artefact-based modeling supported by empirical results can solve
a particular set of problems while not limiting the application of other
methods and tools and facilitating the interaction between different fields of
practice and research.
