Comparing Goal-Oriented Approaches to Model Requirements for CSCW

Collaborative systems are becoming increasingly important, because they enable several users to work together and carry out collaboration, communication and coordination tasks. We have to highlight that, to perform these tasks, the users have to be aware of other users’ actions, usually by means of a set of awareness techniques. Usually, the specification of this set of techniques has to be done by means of Non-Functional Requirements, related to quality factors such as ease of use or helpfulness. Therefore, choosing a technique to model the requirements of this kind of systems is an important issue. In previous works, we analyzed different Requirements Engineering (RE) techniques, and we concluded that Goal-Oriented is the most promising one for modeling collaborative systems. Based on these conclusions, in this paper we compare three Goal-Oriented approaches, namely NFR framework, i* and KAOS, in order to determine which one is the most suitable to model CSCW stakeholder requirements.