A Prolog Datamodel for State Chart XML

SCXML was proposed as one description language for dialog control in the W3C Multimodal Architecture but lacks the facilities required for grounding and reasoning. This prohibits the application of many dialog modeling techniques for multimodal applications following this W3C standard. By extending SCXML with a Prolog datamodel and scripting language, we enable those techniques to be employed again. Thereby bridging the gap between respective dialog modeling research and a standardized architecture to access and coordinate modalities