Designing Interactive Speech Systems describes the design and implementation of spoken language dialogue within the context of SLDS (spoken language dialogue systems) development. Using an applications-oriented SLDS developed through the Danish Dialogue project, the authors describe the complete process involved in designing such a system; and in doing so present several innovative practical tools, such as dialogue design guideline s, in-depth evaluation methodologies, and speech functionality analysis. The approach taken is firmly applications-oriented, describing the results of research applicable to industry and showing how the development of advanced applications drives research rather than the other way around. All those working on the research and development of spoken language services, especially in the area of telecommunications, will benefit from reading this book.