Uma abordagem para especificação de requisitos sensíveis ao contexto baseado em casos de uso para sistemas autoadaptativos

Abstract

Self-adaptive systems have certain peculiarities with respect to traditional software systems, so that traditional requirements engineering is not able to correctly express its functionalities. For this reason, some authors have been trying to adapt existing techniques in order to take advantage of them. This work aims to study these techniques and, therefore, to create an approach to specification of context-sensitive requirements based on use cases, to assist requirements engineers who need to specify requirements with selfadaptive properties. The methodology performed in this work consisted of a systematic mapping of the literature to explore languages for specification of requirements and to understand how the peculiarities of self-adaptive systems are being treated in them. With the acquired knowledge we developed a UML profile to support the created approach and enable the specification of the requirements in an expressive way. This profile was exposed to a validation strategy through the use of the same by users external to the Project and collection of their opinions via questionnaire. Through the analysis of the collected responses we obtained positive responses about the expressiveness, ease of modeling and usefulness of the generated artifacts, thus considering the objectives of the approach.