This approach is systematic and focused on utilities to develop and design products related speech. Included is coverage of topics such as neuroscience in multimodal cortex, cognitive theory to multi-task performance, stress and workload, as well as humans process information theory and the theory of ecological interface design to evaluate the speech related to human-system interface. Of particular emphasis on topics like design of spoken dialogue systems, in-vehicle communication system design and speech technologies in military applications. The material systematically describes the process of user-center design and usability evaluation methods. Designing Human Interface in Speech Technology suitable for designers, engineers, and decision makers working in the area of speech technology research.