The WUI-Toolkit: A Model-Driven UI Development Framework for Wearable User Interfaces

We introduce the "WUI-Toolkit" as a framework to support and ease the development of wearable user interfaces (WUIs). The toolkit presents a first step towards a model-driven UI design approach in wearable computing that allows even non UI experts the generation of usable and context-aware WUIs. Based on an abstract model of an envisioned user interface that is independent of any concrete representation, the toolkit is able to generate a device- and context- specific UI for a given wearable computing system at runtime. The toolkit features the ability to use available context sources and can automatically adapt generated interfaces to maintain their usability. We present the current architecture including the capabilities of the abstract model and introduce a renderer developed to generate graphical WUIs suitable for monocular head-mounted displays in industrial applications.