Using i* Models to Enrich User Stories

Abstract

In agile methods the user stories are widely used to describe require- ments. However, the user stories are an artifact too narrow to represent and de- tail the requirements. Issues like software context and dependencies between stories are also limited with the use of only this artifact. The lack of documenta- tion in agile development environment is identified as one of the main chal- lenges of the methodology. This work proposes the use of i* model that aims to reduce this lack of existing documentation in agile methods. We propose a set of heuristics to perform the mapping of the requirements presented as user sto- ries in i* models. The i* models are used as a form of documentation in agile environment, thus the user stories can be viewed more broadly and with their proper relationships according to the business environment that they will meet.