Applications such as voice mail, credit verification, order entry and airline reservation systems are slowly being introduced. Critics of voice systems frequently point out their limitations with little understanding of their power or advantages. It is important that the dialogue structure, prompts, system feedback and error messages be designed based on user input, testing and evaluation. Another key determinant of the success of voice systems is the careful matching of users, tasks and environment to the technology. Voice technology is often broken down into 3 major categories.
Processing allows analog patterns of human speech to be digitized.
Once stored in digital form, the information can be transmitted and played back. Voice Mail, Voice Annotation. Processing allows analog patterns of human speech to be translated into their text-based equivalent or into computer commands. The Digital Library is published by the Association for Computing Machinery.