Use Case Focused User-Interaction Diagram: A Communication Tool within AAL Projects

Abstract

The modeling of user interaction in the context of Active and Assisted Living (AAL) projects requires the involvement of different stakeholder groups to achieve usable and acceptable results. Within the research project ZentrAAL a comprehensive participatory approach is deployed, to achieve the goal of a user driven conceptualization, development, and evaluation process. Within this process, the modeling of the user interface and interaction, based on defined use cases is performed by means of various methods. The proposed concept contains an interaction schema that represents elements of the human -- system interface, e.g. navigation, dimensions of use cases, interaction and information elements as well as element labels depicted in one view per use case. The interaction schema acts as a communication tool during the user interaction conceptualization phase in AAL projects. First outcomes of the conceptualization of the use case focused interaction diagram are the improvement of interdisciplinary communication, easy derivation of interface prototypes, and additional point of view for stakeholders in a project.