Design and Implementation of a Multi-modal User Interface of the Virtual World Database System (VWDB)
نویسندگان
چکیده
In this paper, we report on the design and implementation of a multi-modal user interface of the virtual world database system (VWDB). The VWDB is currently under development at Ochanomizii University with the aim of realizing a new generation database system for cyberspace applications. The system will be constructed by integrating a virtual reality system and an object-oriented database system. Since the VWDB provides a virtual world as the user’s database interface, the system must support a multi-modal database language with which users can interact with the VWDB database by means of gesture and voice. We introduce here an automata-based approach to designing the multi-modal language. This idea is in response to the observation that an object in the virtual world changes its state according to a iiserS query or update request issued in a multi-modal manner. We identib a set of automata to characterize the multi-modal interaction and describe a senlatitic network approach fo r translating a multi-modal user input to an equivalent message to access and manipulate database objecrs.
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