Dialogue Engineering: The Dialogue Systems Development Lifecycle
The spoken dialogue systems development lifecycle is in many ways similar to the traditional software development lifecycle. There are a number of stages in the lifecycle: requirements analysis, functional specification, design, implementation, testing and evaluation. However, speech interfaces differ in many ways from traditional graphical user interfaces (GUIs). Speech is a very different input mode compared with the keyboard and mouse, particularly with respect to the fact that speech recognition is error-prone. Furthermore, the types of dialogue that can be conducted using speech differ from (GUI)-based interaction in terms of their structure, potential complexity, and the ways in which the dialogue initiative can shift between the system and the user. For these reasons a number of methodologies and guidelines have evolved over the past few years that are specific to speech-based interfaces. This chapter will review some of these methodologies and guidelines. A system for obtaining and updating information about students and courses, the Student Information System1 will be used to illustrate the different stages in the development process (Rooney, 2002).
KeywordsSpeech Recognition Dialogue System Dialogue Strategy Word Accuracy Transaction Success
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- 1.This system was developed by Elizabeth Rooney as part of the requirements for the MSc Informatics at the University of Ulster. The speech-based system developed in the dissertation is based on the current GUI-based Student System at Dundalk Institute of Technology (DKIT), Ireland.Google Scholar