This chapter helps you deal with cognitive challenges involved in voice user interface design, including conceptual complexity, memory load, and attention. As with all design guidelines, they must be applied with careful consideration of context.
Developing a VoiceXML IVR is straightforward. Designing a quality speech interface, on the other hand, is a long road paved with assumptions, mistakes and failures. Read Jonathan's 10 best practices for VUI design and learn from his mistakes before you fall into the same traps.
M. Book, and V. Gruhn. Proceedings of the 19th IEEE International Conference on Automated Software Engineering (ASE 2004), 20-25 September 2004, Linz, Austria, page 100--109. (2004)