In User Centered Design UCD approaches within software development processes, understanding of users, tasks and environments identifying needs and establishing requirements for a positive user experience UX is essential to achieve a high usability. The quantitative measurement of UX relies on the fulfillment of psychological needs that can be addressed in storyboards in order to create a context for a certain experience with a particular application. To facilitate the process of capturing software products functionality, we present in this work a framework based on Intelligent Agent IA systems to semi-automatically generate user stories. A strong story line is guaranteed by a character-centric approach and additional supportive agents that are defined through characters' properties in form of needs, behaviors skills and goals. Moreover, we allow for the storage of the created characters into a database, so that they can be reused for further stories and we perform a usability evaluation on the user interface to ensure that it meets users' expectations. The system was classified as easy to use and suitable to perform the intended tasks and it also met users' expectation.
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