ABSTRACT
Rapidly evolving technological progress and automation in the field of medical devices and systems (e.g. in the field of Ambient Assisted Living or in clinical context) not only lead to an enhancement in efficiency and effectiveness concerning therapeutic results but also to a change of the Human-Machine-Interaction characteristics. To ensure safe and reliable user interfaces not only ergonomic but also error-tolerant interface design has to be taken into consideration by the design engineer. In this context, the Chair of Medical Engineering (mediTEC) at the RWTH Aachen University has developed a novel modeling and analysis tool (mAIXusc) in order to create standardised representation and assessment of the user interaction process, even with complex graphical interfaces of medical devices and systems. Adapted from two model-based methodologies the tool uses formal, normative models to predict and assess user-, interaction-and system-behaviour. The software-based tool can be used from the very early developmental phases (definition and specification) up to the validation of existing user interfaces.
