Deriving use cases from organizational modeling

Abstract

Use cases diagrams in the Unified Modeling Language (UML) have been used for capturing system functional requirements. However, the system development occurs in a context where organizational processes are well established Therefore, we need to capture organizational requirements to define how the system fulfils the organization goals, why it is necessary, what are the possible alternatives, etc. Unfortunately, UML is ill equipped for modeling organizational requirements. We need other techniques, such as i*, to represent these aspects. Nevertheless, organizational requirements must be related to functional requirements represented as Use Cases. In this paper we present some guidelines to assist requirement engineers in the development of Use Cases from the i* organizational models.