Abstract—Recently, two complementary approaches are proposed to represent, model and analyze laws: the Nomos and VLPM approaches. Nomos is a goal-oriented approach to effectively capture high-level principles in terms of goal realization for the requirements guided by the satisfiability of normative proposition(s) obtained from rules embedded in the law. The latter offers a tool supported (re-)engineering methodology to extract laws represented in XML and build models using a subset of UML diagrams. Both allow traceability between the laws and their respective models. This paper proposes an integration of these two approaches. We believe that this provides a framework that allows to trace and reason either top-down, from the principles to the implementation or, vice versa, bottom-up, from a change in the procedure to the principles. It is exactly this connection that adds value to the solution we propose and makes our approach more significant than the simple juxtaposition of the t...