Limiting the Scope of the Domain Language to Describe the Application Language

Agile methodologies arise as a way to cope with problems of estimation and planning that occur in traditional software development. Nevertheless, the transition to agile could be hard. The key challenge reported by literature refers to requirements, in particular with the identification and description of User Stories. It is stated that User Stories are often described vaguely by the wrong people at the wrong time. To cope with this problem, there is an already proposed strategy which consists in deriving User Stories from the domain language captured through the Language Extended Lexicon (LEL). This strategy produces an initial set of User Stories with small effort. Since the LEL aims to capture the language of the domain while the User Stories must be limited to a specific application we believe that it is necessary to adjust the LEL. In this paper, we propose a strategy to limit an LEL that describes the language of a domain to describe the vocabulary of a specific application. Consequently, User Stories derived from the limited LEL using the already proposed approach will only describe the functionality of the application. Based on a preliminary evaluation, we state that teams with no experience in writing User Stories obtain better products. Although the results are preliminaries, we think that they are