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 requirements guided by satisfiability of normative propositions obtained from rules embedded in a 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 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 principles to their implementation or, viceversa, 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 a simple juxtaposition of the two techniques.
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