Using the Wizard-of-Oz technique in requirements engineering processes: A trial in a tourism context
Independent thesis Advanced level (degree of Master (Two Years)), 20 credits / 30 HE creditsStudent thesis
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.
Wizard of Oz, requirements engineering, interactive systems, multimedia, prototyping, exploration techniques, exploratory interaction
Human Computer Interaction
IdentifiersURN: urn:nbn:se:kau:diva-38098Local ID: 2OAI: oai:DiVA.org:kau-38098DiVA: diva2:858820
Subject / course
Master Programme in Information Systems (120 ECTS credits)
Pettersson, John Sören, Professor
Gustas, Remigijus, Professor