Context-Sensitive User-Centered Scalability: An Introduction Focusing on Exergames and Assistive Systems in Work Contexts

This paper introduces an approach for implementing context-sensitive user-centered scalability (CSUCS) into interactive applications using motion recognition. With scalability we refer to a system’s ability to adapt to the physical and cognitive abilities of a specific user. We discuss an adapted HAAT-model (Human Activity Assistive Technology Model) and the flow concept and show their use in two prototypical implementations: An “exergame” enriching sports exercises for the elderly and an assistive system using gamification elements to enrich the working experience of impaired and elderly persons.