Non-functional requirements elicitation from restricted business processes

Abstract

Requirements specification must describe not only functional requirements but also non-functional requirements. A Method for improving reliability by identifying input exceptions has been known. Previous methods for extracting non-functional requirements based on questions about functional requirements have also been proposed. However, it was not clear how to extract non-functional requirements based on the business processes that functional requirements automate.In this paper, we propose a method for extracting non-functional requirements based on the input acceptance conditions, resource conditions for executing business processes, and output judgment conditions of the business processes that functional requirements support, as well as their exceptions.