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Announcing Latest Issue of the Int. Journal of Mobile HCI

Source: Editor-In-Chief, 4 September 2013

The contents of the latest issue of: International Journal of Mobile Human Computer Interaction (IJMHCI) Official Publication of the Information Resources Management Association Volume 5, Issue 3, July ­ September 2013 
Published: Quarterly in Print and Electronically
ISSN: 1942-390x
EISSN: 1942-3918
Published by IGI Publishing, Hershey, Pennsylvania, USA
Editor-in-Chief: Joanna Lumsden, Aston University, UK

Paper One

Design Games for In-Situ Design

Erik Kristiansen (Department of Communication, Business and IT, Roskilde University, Roskilde, Denmark)

The mobile culture has spawned a host of context-based products, like location-based and tag-based applications. This presents a new challenge for the designer. There is a need of design methods that acknowledge the context and allows it to influence the design ideas. This article focuses on a design problem where an in-situ design practice may further the early design process: the case of designing a pervasive game. Pervasive games are computer games, played using the city as a game board and often using mobile phones with GPS.

Some contextual design methods exist, but the author proposes an approach that calls for the designer to conceptualise and perform ideas in-situ, that is on the site, where the game is supposed to be played. The problem was to design a creativity method that incorporated in-situ design work and which generated game concepts for pervasive games.

The proposed design method, called sitestorming, is based on a game using Situationistic individual exploration of the site and different types of game cards, followed by a joint evaluation of the generated ideas. A series of evaluations showed that the designers found the method enjoyable to use, that the method motivated idea generation, and that using in-situ design influenced their design ideas.

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Paper Two

MagiThings: Gestural Interaction with Mobile Devices Based on Using Embedded Compass (Magnetic Field) Sensor

Hamed Ketabdar (Telekom Innovation Labs, Deutsche Telekom Laboratories, TU Berlin, Berlin, Germany), Amin Haji-Abolhassani (Centre for Intelligent Machines, McGill University, Montreal, Canada) and Mehran Roshandel (Telekom Innovation Labs, Deutsche Telekom Laboratories, Berlin, Germany)

The theory of around device interaction (ADI) has recently gained a lot of attention in the field of human computer interaction (HCI). As an alternative to the classic data entry methods, such as keypads and touch screens interaction, ADI proposes a touchless user interface that extends beyond the peripheral area of a device. In this paper, the authors propose a new approach for around mobile device interaction based on magnetic field. Our new approach, which we call it 'MagiThings', takes the advantage of digital compass (a magnetometer) embedded in new generation of mobile devices such as Apple's iPhone 3GS/4G, and Google's Nexus.

The user movements of a properly shaped magnet around the device deform the original magnetic field. The magnet is taken or worn around the fingers. The changes made in the magnetic field pattern around the device constitute a new way of interacting with the device. Thus, the magnetic field encompassing the device plays the role of a communication channel and encodes the hand/finger movement patterns into temporal changes sensed by the compass sensor.

The mobile device samples momentary status of the field. The field changes, caused by hand (finger) gesture, is used as a basis for sending interaction commands to the device. The pattern of change is matched against pre-recorded templates or trained models to recognize a gesture. The proposed methodology has been successfully tested for a variety of applications such as interaction with user interface of a mobile device, character (digit) entry, user authentication, gaming, and touchless mobile music synthesis.

The experimental results show high accuracy in recognizing simple or complex gestures in a wide range of applications. The proposed method provides a practical and simple framework for touchless interaction with mobile devices relying only on an internally embedded sensor and a magnet.

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