February 2000
Beginner to intermediate
406 pages
8h 5m
English
Content preview from Designing Effective Speech Interfaces
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Technical Clarity
Law #11 is Technical Clarity: The interface will have the highest possible fidelity.
Human Factors
To use an interface effectively, users must be able to perceive the attributes of the interface clearly, whether that is a visual display, sound through speech, or buttons on a keypad.
Technology Considerations and Implications
Technical clarity refers to the level of quality or fidelity that portions of the interface carry. For example, a visual display with high clarity or fidelity will have a high resolution that allows users to read the text and view the graphics. Buttons on a device with technical clarity will be discernible and easily pressed. For a speech interface, technical clarity means that the sounds and the speech of the machine are of a high enough fidelity to be understood.
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