Business Performer-Centered Design of User Interfaces Kˆ enia Sousa and Jean Vanderdonckt Abstract. Business Performer-Centered Design of User Interfaces is a new design methodology that adopts business process (BP) definition and a business performer perspective for managing the life cycle of user interfaces of enterprise systems. In this methodology, when the organization has a business process culture, the business processes of an organization are firstly defined according to a traditional methodo- logy for this kind of artifact. These business processes are then transformed into a series of task models that represent the interactive parts of the business processes that will ultimately lead to interactive systems. When the organization has its en- terprise systems, but not yet its business processes modeled, the user interfaces of the systems help derive tasks models, which are then used to derive the business processes. The double linking between a business process and a task model, and between a task model and a user interface model makes it possible to ensure trace- ability of the artifacts in multiple paths and enables a more active participation of business performers in analyzing the resulting user interfaces. In this paper, we out- line how a human-perspective is used tied to a model-driven perspective. 1 Introduction User Interfaces (UIs) have been historically specified, designed, developed, and tested according to multiple design methodologies that have reflected a particular emphasis that was prevalent during a certain period. Each design methodology al- ways adopted a certain viewpoint to drive the development life cycle. Over years, we witnessed the following viewpoints: Kˆ enia Sousa Universit´ e catholique de Louvain, Louvain School of Management, Belgian Laboratory of Computer-Human Interaction, Place des Doyens, 1, 1348 Louvain-la-Neuve, Belgium e-mail: kenia.sousa@uclouvain.be Jean Vanderdonckt Universit´ e catholique de Louvain, Louvain School of Management, Belgian Laboratory of Computer-Human Interaction, Place des Doyens, 1, 1348 Louvain-la-Neuve, Belgium e-mail: jean.vanderdonckt@uclouvain.be H. Hussmann et al. (Eds.): MDD of Advanced User Interfaces, SCI 340, pp. 123–142. springerlink.com c  Springer-Verlag Berlin Heidelberg 2011