Date of Original Version

1989

Type

Technical Report

Rights Management

All Rights Reserved

Abstract or Description

Abstract: "This paper discusses design principles for spoken language applications. We focus on those aspects of interface design that are separate from basic speech recognition and that are concerned with the global process of performing a task using a speech interface. Six basic speech user interface design principles are discussed: 1. User plasticity. This property describes how much users can adapt to speech interfaces. 2. Interaction protocol styles. We explain how different interaction protocols for speech interfaces impact on basic task throughput. 3. Error correction. Alternate ways to correct recognition errors are examined. 4. Response Time. The response time requirements of a speech user interface is presented based on experimental results.5. Task structure. The use of task structure to reduce the complexity of the speech recognition problem is discussed and the resulting benefits are demonstrated. 6. Multi-Modality. The opportunity for integration of several modalities into the interface is evaluated. Since these design principles are different from others for standard applications with typing or pointing, we present experimental support for the importance of these principles as well as perspectives towards solutions and further research."

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