Spatial audio in small display screen devices

Our work addresses the problem of (visual) clutter in mobile device interfaces. The solution we propose involves the translation of technique-from the graphical to the audio domain-for expliting space in information representation. This article presents an illustrative example in the form of a spatialisedaudio progress bar. In usability tests, participants performed background monitoring tasks significantly more accurately using this spatialised audio (a compared with a conventional visual) progress bar. Moreover, their performance in a simultaneously running, visually demanding foreground task was significantly improved in the eye-free monitoring condition. These results have important implications for the design of multi-tasking interfaces for mobile devices

A new model for cross-cultural web design

This thesis was submitted for the degree of Doctor of Philosophy and awarded by Brunel University.People from different cultures use web interface in different ways, expect different visual representation, navigation, interaction, mental model, and layouts etc., and have different communication patterns and expectation. In the context of globalisation, web localisation becomes a powerful strategy to acquire an audience in a global market. Therefore, web developers and designers have to make adaptations to fit the needs of people from different cultures, and the way cultural factors are integrated into web interface design needs to be improved. Most previous research lacks an appropriate way to apply cultural factors into web development. No empirical study of the web interface has been carried out to support the cross-cultural web design model. It is noted that no single model can support all cross-cultural web communication but a new model is needed to bridge the gap and improve the limitations. Thus the research aim was to build a new model of cross-cultural web design to contribute to effective communication. Following an extensive literature review, a local web audit was conducted, then a series of experiments with users to gather and evaluate data and build and validate the new model. A new model, based on a study of British and Taiwanese users, was formulated and validated demonstrating that content and message remain the core of web design but the performance of the selected users is influenced by the cultural dimension and cultural preferences and this, in turn impacts on the effectiveness of the web communication. For the British user sample, ease of using the website was seen to be strongly related to desirability. Taiwanese users showed preference for visual pleasure but no relationship between efficient performance and desirability. The resultant model contributes to the knowledge of how to design effective web interfaces for British and Taiwanese cultures and is replicable for the purpose of comparing approaches to designing for other cultures

Usability improvement of public transit application through mental model and user journey

Using a mobile application that is featured with local public transit information can greatly improve user action, as well as assisting travelers to have a better experience while taking public transit services. Crowd environment inside a public transit is one of the most frequent causes that lead difficulties to passengers when they engaging their mobile devices to access their apps or in some conditions. Finding crucial information such as stops points and remaining time to interchanges point when switching to another line becomes more difficult in those conditions especially for foreigners who new in a particular region. This study presents the combination of a mental model and a usability approach to construct a user journey map that led to new insights on user's experiences and challenges when utilizing their mobile local transit application. This valuable information is a part of the elicitation process to propose an alternative interaction method to enhance the usability and travel experience of the public transit app. The experimental results indicate that in contrast to the existing mobile transit app, the proposed interface with the utilization of a wearable device could considerably enhance user action when trying to reach the desired location in terms of total time and performance. It implies that the proposed solution, which works through the mental model and user journey is able to intuitively enhance the public transit app usability

Highly interactive multimedia application design

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Choosing Your Moment: Interruptions in Multimedia Annotation.

In a cooperative mixed-initiative system, timely and effective dialogue between the system and user is important to ensure that both sides work towards producing the most effective results, and this is affected by how disruptive any interruptions are as the user completes their primary task. A disruptive interaction means the user may become irritated with the system, or might take longer to deal with the interruption and provide information that the system needs to continue. Disruption is influenced both by the nature of the interaction and when it takes place in the context of the user’s progress through their main task. We describe an experiment based on a prototype cooperative video annotation system designed to explore the impact of interruptions, in the form of questions posed by the system that the user must address. Our findings demonstrate a preference towards questions presented in context with the content of the video, rather than at the natural opportunities presented by transitions in the video. This differs from previous research which concentrates on interruptions in the form of notifications

M-health review: joining up healthcare in a wireless world

In recent years, there has been a huge increase in the use of information and communication technologies (ICT) to deliver health and social care. This trend is bound to continue as providers (whether public or private) strive to deliver better care to more people under conditions of severe budgetary constraint

Investigation of behavior and perception of digital library users: A cognitive style perspective

Cognitive style is an influential factor in users’ information seeking. The study presented in this paper examines how users’ cognitive styles affect their behavior and perception in digital libraries. Fifty participants took part in this study. Two dimensions of cognitive styles were considered: (a) Field Dependence/Independence; (2) Verbalizer/Imager. The results showed that Intermediate users and Verbalizers have not only more positive perception, but they also complete the tasks in effective ways. Implications for the design of personalized digital libraries are also discussed