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Using the Wizard-of-Oz technique in requirements engineering processes: A trial in a tourism context
Karlstad University, Faculty of Arts and Social Sciences (starting 2013), Karlstad Business School.
2015 (English)Independent thesis Advanced level (degree of Master (Two Years)), 20 credits / 30 HE creditsStudent thesis
Abstract [en]

The purpose of the study is to explore the possibility to use the experimental prototyping technique called Wizard of Oz as a requirements engineering technique in multimedia development with a focus on how to capture (and test) requirements for system responses in on-going GUI dialogues between user and system. The Wizard-of-Oz technique makes it possible to try interactive prototypes with users or in the development team without needing any programming to be conducted first.

In a tourism context interactive prototypes made in the Wizard-of-Oz system called Ozlab were used to produce live answers to tourists. The prototyped information kiosk was offered as a complement to the already running tourist information website. The available surveys and web statistics regarding tourist information system could not provide non-functional requirements. Instead, three interviews and one observation were conducted, leading up to the four experiments where the WOz technique was tried as a requirements engineering technique in addition to the traditional data collection methods.

The results of this study show how a graphical Wizard-of-Oz tool can be used as a complement to traditional requirements elicitation methods. The study also shows limitations to WOz based requirements engineering work; subject experts are needed in the wizard team, for example. The study also resulted in several developments of the experimental tool itself; the web feature was exploited much further than originally conceived by the Ozlab developers.

Place, publisher, year, edition, pages
2015. , 100 p.
Keyword [en]
Wizard of Oz, requirements engineering, interactive systems, multimedia, prototyping, exploration techniques, exploratory interaction
National Category
Human Computer Interaction
URN: urn:nbn:se:kau:diva-38098Local ID: 2OAI: diva2:858820
Subject / course
Information Systems
Educational program
Master Programme in Information Systems (120 ECTS credits)
Available from: 2015-10-13 Created: 2015-10-05 Last updated: 2016-01-11Bibliographically approved

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