Usability Methodologies for Real-Life Voice User Interfaces

Usability Methodologies for Real-Life Voice User Interfaces

Georgios Kouroupetroglou (University of Athens, Greece) and Dimitris Spiliotopoulos (University of Athens, Greece)
DOI: 10.4018/jitwe.2009100105
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Abstract

This paper studies the usability methodologies for spoken dialogue web interfaces along with the appropriate designer-needs analysis. The work unfolds a theoretical perspective to the methods that are extensively used and provides a framework description for creating and testing usable content and applications for conversational interfaces. The main concerns include the design issues for usability testing and evaluation during the development lifecycle, the basic customer experience metrics and the problems that arise after the deployment of real-life systems. Through the discussion of the evaluation and testing methods, this paper argues on the importance and the potential of wizard-based functional assessment and usability testing for deployed systems, presenting an appropriate environment as part of an integrated development framework.
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Background

People use the web and engage in several different activities, information retrieval, problem solving, entertainment, social interaction, personal, work, etc. Human-computer interaction is the study of interactive communication between humans and computers. People acquire communicative skills over time through the experience of using and operating the user interfaces. As the level of user adeptness rises, the speed and accuracy of the operation increases. The user adapts to the system and interacts more efficiently. The level of absolute efficiency corresponds to the actual system design, and can be assessed either as a full system or as a breakdown of its fundamental design modules or processes. In order to evaluate usability of such interfaces it is important to understand their design requirements and their architecture. The architecture of most applications falls into specific interaction frameworks, described below.

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