NDLI: A feasible group testing framework for producing usable virtual reality learning applications

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A feasible group testing framework for producing usable virtual reality learning applications

Content Provider	Springer Nature Link
Author	Chen, Chwen Jen Lau, Siew Yung Teh, Chee Siong
Copyright Year	2015
Abstract	Designing a usable learning application is one of the key factors in ensuring effective learning. This article introduces modified group usability testing (MGUT) as a feasible framework for evaluating the usability of non-immersive virtual reality (VR) learning applications. Conventionally, usability testing of such learning applications often employs the one-to-one approach in which an evaluator conducts testing with several individual participants. As opposed to the one-to-one approach, the group approach involves several-to-many participants performing tasks simultaneously, with several evaluators observing and interacting with participants. This article describes the complete step-by-step procedure for conducting MGUT to uncover usability problems of a VR learning application that aims to educate its users on fire safety and prevention. It also proposes methods to analyze these usability problems. The effectiveness and efficiency of MGUT was then compared with DGUT, the original group testing technique and cooperative evaluation (CE), which is a typical one-to-one approach. Results indicate that all three techniques are able to reveal usability problems of different usability factors and show similar capability to discover the most critical and serious problems. MGUT is more effective than DGUT as it can collect additional usability problems of various factors and of different levels of severity. MGUT is as effective as CE as both techniques can identify usability problems which are more or less comparable in terms of quantity and quality. As for efficiency, MGUT and DGUT are more efficient than CE as these group testing approaches require lesser testing time, lesser effort in terms of the intensive interaction with participants although with slight more effort in the preparation of the physical setting. In addition, it is also obvious that MGUT and DGUT involve richer participation than CE. MGUT is also more feasible than DGUT as it allows some flexibility in the computer arrangement setting.
Starting Page	129
Ending Page	144
Page Count	16
File Format	PDF
ISSN	13594338
Journal	Virtual Reality
Volume Number	19
Issue Number	2
e-ISSN	14349957
Language	English
Publisher	Springer London
Publisher Date	2015-05-15
Publisher Place	London
Access Restriction	Subscribed
Subject Keyword	Virtual reality Human–computer interface Group usability testing Interactive learning environments Computer Graphics Computing Methodologies Artificial Intelligence (incl. Robotics) Image Processing and Computer Vision
Content Type	Text
Resource Type	Article
Subject	Computer Graphics and Computer-Aided Design Human-Computer Interaction Software

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1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
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9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

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