The development of large-scale dialog systems requires a flexible architecture model and adequate software support to cope with the challenge of system integration. This contribution 1 presents a general framework for building integrated natural-language and multimodal dialog systems. Our approach relies on a distributed component model that enables flexible re-use and extension of existing software modules and is able to deal with a heterogeneous software environment. A practical result of our research is the development of a sophisticated integration platform, called MULTIPLATFORM, which is based on the proposed framework. This MULTIPLATFORM testbed has been used in various large and mid-size research projects to develop integrated system prototypes.

The paper presents a system architecture for the automatic generation of interface specifications from ontologies. 1 The ensuing interfaces (XML schema definitions) preserve a significant amount of the knowledge originally encoded in the ontology. The approach is relevant for the engineering of large-scale language technology systems. It has been successfully deployed in a complex multi-modal dialogue system SMARTKOM.

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