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This paper describes the design of a training system in which three-dimensional (3-D) graphics are employed to help satellite operations trainees learn about satellite systems. The design takes into account training practices and support requirements of the satellite systems instructors who will be using it and ways in which trainees should be able to interact with and use the 3-D graphics. The training system must significantly improve the rate of satellite system knowledge acquisition beyond the rate obtained using current training practices. To this end, training principles that facilitate the acquisition of complex, functional, and integrated knowledge guided the design of a training system infrastructure that puts 3-D graphics to optimal use.

The Generator of INterface Agents (GINA) is a software workbench that supports the development of interface agents. Viewing agent development as a cognitive engineering process, GINA supports development of agents from cognitive models of the human whose functions are being automated andlor supported by the agent. Built around the COGNET cognitive task analysis language, GINA provides software tools to support building and editing cognitive models, translating the models into executable forms that provide the reasoning kernel of an intelligent agent, building a software shell that allows this kernel to communicate with the targeted application environment, and testing and debugging the resulting agent.

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