ARRoW: Tool Support for Automatic Runtime Reappraisal of Weights

Prioritization of non-functional requirements (NFRs) is a research field that needs more attention. We demonstrate ARRoW, a novel approach for automatic runtime reappraisal and update of the weights of NFRs given new evidence collected from the environment during the execution of the system. In this paper, we showcase how ARRoW is used in an substantial industrial case study. Our results shows how the approach offers a better-informed decision-making process by allowing the reappraisal and update of the weights of the NFRs in accordance to the newly detected environmental contexts.