Capturing Evidence and Rationales with Requirements Engineering and Argumentation-Based Techniques

User Requirements Notation (URN) is a modeling language with two complementary notations for capturing goals and non-functional requirements as well as low level processes and functional requirements. URN helps documenting the rationale behind the decisions, however, it lacks gathering the evidences for these rationales and documenting stakeholder discussions. In this paper, we propose a framework to extend URN with the Hybrid approach in reasoning based on evidences.