High-Level Modeling of Multimodal Interaction Techniques Using NiMMiT De Boeck Joan Vanacken Davy Raymaekers Chris Coninx Karin The past few years, multimodal interaction has been gaining importance in virtual environments. Although multimodality renders interacting with an environment more natural and intuitive, the development cycle of such an application is often long and expensive. In our overall field of research, we investigate how modelbased design can facilitate the development process by designing environments through the use of highlevel diagrams. In this scope, we present ‘NiMMiT’, a graphical notation for expressing and evaluating multimodal user interaction; we elaborate on the NiMMiT primitives and demonstrate its use by means of a comprehensive example. Interaction Metaphors Interaction Techniques Interactive Virtual Environment Model-Based Design Multimodal Interaction 004 periodical academic journal JVRB - Journal of Virtual Reality and Broadcasting 4(2007) 2 2007 1860-2037 urn:nbn:de:0009-6-11615 10.20385/1860-2037/4.2007.2 http://nbn-resolving.de/urn:nbn:de:0009-6-11615 de boeck2007