Textual passwords are the most common method used for authentication. But textual passwords are vulnerable to eves dropping, dictionary attacks, social engineering and shoulder surfing. Graphical passwords are introduced as alternative techniques to textual passwords. Most of the graphical schemes are vulnerable to shoulder surfing. To address this problem, text can be combined with images or c...

This paper examines the current state of museum guide technologies and applications in order to develop an analytical foundation for future research on an adaptive museum guide for families. The analysis focuses on three critical areas of interest in considering group and social interaction in museums: tangibility the role of tangible user interfaces; interaction visit types and visit flows; an...

Concerns about detecting and responding to attacks with biowarfare agents have resulted in the development of deployable case reporting systems, e.g. RSVP. We implement a proof of concept web-based information system to be used securely from personal digital assistants over public wireless networks, by public health field workers for routine and emergent case reporting. The system collects data...

IPv6 is a new version of the Internet Protocol that was standardised by the Internet Engineering Task Force (IETF). Mobility support in IPv6 is presently being standardised by the IETF Mobile IP Working Group. IPv6 has been designed to overcome all the problems within IPv4 and to provide solutions for the next generation networks. Devices such as Personal Digital Assistants (PDAs) with IP suppo...

Knowledge access in distributed training. Mobile opportunities for medical students' ('KNOWMOBILE') is exploring just-in-time functionality with Internet based educational resources on personal digital assistants (PDAs). Intended for life long learning in a variety of health professions, this specific project concentrates on medical students during their assignment to the primary health care se...

Mobile payment entails making payments using mobile devices including wireless handsets, personal digital assistants, and other radio frequency and near field communication based devices. While mPayment is still in its infancy, its acceptance is expected to increase exponentially in the coming years. By expanding the Technology Acceptance Model and the Innovation Diffusion Theory, this study ai...

This paper presents an extension to inViPla, a video search framework designed for operation on Personal Digital Assistants (PDA). The internal query system of the original framework has been replaced with a new query engine which generates multimedia queries using the MPEG Query Format (MPQF) standard to achieve platform independence. To formulate such queries the Mobile Multimedia Composer ha...

Experiential learning is the process of creating knowledge through the transformation of experience and has been adopted in an increasing number of areas. This paper investigates the possibility of technological support for experiential learning. A learning activity flow (or script) and a mobile technology system were designed to facilitate students in experiential learning. An experiment was c...

In this video presentation we demonstrate the STARS platform for realizing computer augmented tabletop games within a smart Roomware® environment. STARS dynamically couples multiple types of interaction devices such as personal digital assistants (PDAs) or headsets with an interactive game table. STARS augmented tabletop games provide a number of features like dynamic game boards or private com...

The use of mobile devices such as handhelds and Personal Digital Assistants (PDAs) to data access anywhere and any time is becoming more common. However, PDAs devices have limited computational resources. Therefore, reduction of memory space and efficiency in accessing data are critical issues. This paper presents an efficient framework to data access, storage and compression in mobile devices ...