User-centered design and evaluation of an interactive visual-haptic-auditory interface : a user study on assembly

Utilizing user-centred system design and evaluation method has become an increasingly important tool to foster better usability in the field of virtual environments (VEs). In recent years, although it is still the norm that designers and developers are concerning the technological advancement and striving for designing impressive multimodal multisensory interfaces, more and more awareness are aroused among the development team that in order to produce usable and useful interfaces, it is essential to have users in mind during design and validate a new design from users' perspective. In this paper, we describe a user study carried out to validate a newly developed haptically enabled virtual training system. By taking consideration of the complexity of individual differences on human performance, adoption and acceptance of haptic and audio-visual I/O devices, we address how well users learn, perform, adapt to and perceive object assembly training. We also explore user experience and interaction with the system, and discuss how multisensory feedback affects user performance, perception and acceptance. At last, we discuss how to better design VEs that enhance users perception, their interaction and motor activity.

A haptic platform to enable fingertip grasping and manipulation

Haptic technologies allow human users to haptically interact with virtual environments. Haptics has been employed in many application domains including operator training, virtual exploration and teleoperation. Currently, most commercially available haptic devices focus on a single point of haptic interaction. While single-point haptics have been successfully employed in many applications, they remain limited to particular types of haptic interaction. Multi-point haptic devices are a logical progression and facilitate a far wider range of interactions including object grasping, multi-finger object manipulation and size discrimination. The ability to effectively achieve such interactions offers significant benefits for many applications including virtual training, telesurgery and telemanipulation. In such applications, the ability to use multi-point haptic interactions can provide far more effective user interaction as well improved perception of the virtual environment.

Inclusive practices in academia and beyond

This chapter explores a set of principles that underpin ensuring that the learning needs of all students are addressed in next generation learning spaces. With increasingly diverse higher education environments and populations, higher education needs to move from seeing student diversity as problematic and deficit-based, to welcoming, celebrating and recognising diversity for the contributions it makes to enhancing the experience and learning outcomes for all students. The principles of Universal Design for Learning (CAST, 2011) provide a framework for highquality university teaching and learning, as well as guidance on the multiple methods and means by which all students can be engaged and learn in ways that best suit their individual styles and needs. An inclusive approach is important pedagogically and applies to both the physical and virtual environments and spaces inhabited by students. When the design of physical environments does not incorporate universal design principles, the result is that some students can be locked out of participating in campus or university life or, for some, the energy required to participate can be substantial. With the digital education frontier expanding at an exponential rate, there is also a need to ensure that online and virtual environments are accessible for all. This chapter draws on the relevant research and the combined experience of the authors to explore an approach to inclusive practices in higher education next generation learning spaces and beyond. © 2014 by Emerald Group Publishing Limited.

Blended learning and art education: student participation in a collaborative, authentic assessment project

This paper reports on higher education student engagement with blended learning experiences incorporating located (on campus), cloud based (online e-learning ) and graphically built, socially networked 3D multi user virtual environments (MUVES). Immersion in this environment enabled collaboration between two groups of students enrolled in separate undergraduate art education and public relations units, to identify, develop and participate in an integrated, authentic assessment project. It is contended that immersive blended learning experiences support creative problem solving and encourages synchronous and asynchronous student participation in authentic problem solving and collaborative practice. Interacting with co-learners, students gain knowledge and skills through situated learning, defined as the application of knowledge, learned in one setting and transferred to another and where immersion in a virtual learning experience leads to higher level engagement on the transfer task in a real world setting. In this project, collaborative blended learning involved the creation of a collection of digital artworks by art education students using computer software located in a real world environment. These artworks were curated and exhibited by the students in a virtual gallery they designed and built on Deakin Arts Education island in Second Life. For public relations students, the virtual art exhibition was the focus of a virtual campaign, designed, researched and developed by them to promote the Deakin Virtual Art Gallery on Deakin island in Second Life. The final promotion for the Virtual Gallery was presented by the students at a symposium in both real world and virtual world environments.

Splitting centre : directing attention in trans-media dance performance

In theatrical vernacular, the term ‘splitting centre’ refers to two performers staged at an equal distance from a centre point and sharing the focus of the audience. This term encapsulates the notion that two people (or, in the case of trans-media dance, two or more performance entities) are dividing the attention of the audience, operating as equal collaborators in a performance context. The augmentation of live performance with 3D projected scenography and mobile devices offers a starting point for discussions on the potential for dramaturgy, choreographic process, and changing expectations for audience behaviour in the theatre. In 2014, Deakin Motion.Lab premiered The Crack Up, a trans-media dance work that incorporated live performance, 3D digital scenography, and The Crack Up App, an app for mobile devices that audience members were invited to interact with during the performance. This investigation into the potential of trans-media dance performance, (defined here as a live performance in which both the digital and biological elements are choreographed as artistic equals within the theatrical context) with the addition of a mobile device raises questions about how the makers of trans-media dance might direct the attention of their audiences when the work is performed simultaneously across multiple platforms.

Blended reality and presence

Human experience of public space is changing as virtual space blends with real space and technology provides increasingly hyperimmersive virtual environments. The purpose of this study is to reformulate the framework within which our virtual experience of location and self might usefully be considered, and this is articulated in terms of presence. We review the distinction between immersion and presence, illustrate various facets of immersion using a current virtual reality system specific to architecture and construction, and consider the key features of prominent presence theories. The results of an empirical study to evaluate the utility of a widely adopted survey instrument (the Slater-Usoh-Steed presence questionnaire) are presented and discussed. Incongruously, results indicate that users reporting their experience of virtual reality score that experience higher in presence terms than users experiencing the physical world. New perspectives drawn from emerging brain theory are required.

A domain-specific visual modeling language for testing environment emulation

Software integration testing plays an increasingly important role as the software industry has experienced a major change from isolated applications to highly distributed computing environments. Conducting integration testing is a challenging task because it is often very difficult to replicate a real enterprise environment. Emulating testing environment is one of the key solutions to this problem. However, existing specification-based emulation techniques require manual coding of their message processing engines, therefore incurring high development cost. In this paper, we present a suite of domain-specific visual modelinglanguages to describe emulated testing environments at a highabstraction level. Our solution allows domain experts to model atesting environment from abstract interface layers. These layermodels are then transformed to runtime environment for application testing. Our user study shows that our visual languages are easy to use, yet with sufficient expressive power to model complex testing applications.

Wikis: collaborative virtual learning environments

Ward Cunningham used the word wiki (the Hawaiian word meaning quick) to name the collaborative tool he developed for use on the internet in 1994. Wikis are fully editable websites. Users can visit, read, re-organize and update the structure and content (text and pictures) of a wiki as they see fit. This functionality is called open editing (Leuf & Cunningham, 2001). All a user needs to edit and read a wiki, is a web browser. Consequently, the wiki has great potential for use as a collaborative virtual learning environment. Wikis abound on the internet. A well known wiki is Wikipedia an online collaborative encyclopaedia, where anybody can read, edit, re-organize and update the encyclopaedia content (Wikipedia, 2004).

Language learning strategies of adult ESL learners using virtual independent learning environments

This case study explored the influence of the Virtual Independent Learning Centre on the preferred language learning strategies of adult immigrant English as a second language learners. Findings expand the understanding of English as a second language learners' use of language learning strategies within online independent learning environments.

Virtual world security inspection : a software inspection process carried out on popular virtual world environments

 Virtual property theft is a serious problem that exists in virtual worlds. Legitimate users of these worlds invest considerable amounts of time, effort and real-world money into obtaining virtual property, but unfortunately, are becoming victims of theft in high numbers. It is reported that there are over 1 billion registered users of virtual worlds containing virtual property items worth an estimated US$50 billion dollars. The problem of virtual property theft is complex, involving many legal, social and technological issues. The software used to access virtual worlds is of great importance as they form the primary interface to these worlds and as such the primary interface to conduct virtual property theft. The security vulnerabilities of virtual world applications have not, to date, been examined. This study aims to use the process of software inspection to discover security vulnerabilities that may exist within virtual world software – vulnerabilities that enable virtual property theft to occur. Analyzing three well know virtual world applications World of Warcraft, Guild Wars and Entropia Universe, this research utilized security analysis tools and scenario testing with focus on authentication, trading, intruder detection and virtual property recovery. It was discovered that all three examples were susceptible to keylogging, mail and direct trade methods were the most likely method for transferring stolen items, intrusion detection is of critical concern to all VWEs tested, stolen items were unable to be recovered in all cases and lastly occurrences of theft were undetectable in all cases. The results gained in this study present the key problem areas which need to be addressed to improve security and reduce the occurrence of virtual property theft.

The social network virtual design studio : integrated design learning using blended learning environments

Online communications, multimedia, mobile computing and face-to-face learning create blended learning environments to which some Virtual Design Studios (VDS) have reacted to. Social Networks (SN), as instruments for communication, have provided a potentially fruitful operative base for VDS. These technologies transfer communication, leadership, democratic interaction, teamwork, social engagement and responsibility away from the design tutors to the participants. The implementation of Social Network VDS (SNVDS) moved the VDS beyond its conventional realm and enabled students to develop architectural design that is embedded into a community of learners and expertise both online and offline. Problem-based learning (PBL) becomes an iterative and reflexive process facilitating deep learning. The paper discusses details of the SNVDS, its pedagogical implications to PBL, and presents how the SNVDS is successful in enabling architectural students to collaborate and communicate design proposals that integrate a variety of skills, deep learning, knowledge and construction with a rich learning experience.