User interface design
Rapid prototyping of mobile context-aware applications: the Cyberguide case study
MobiCom '96 Proceedings of the 2nd annual international conference on Mobile computing and networking
“Data in your face”: push technology in perspective
SIGMOD '98 Proceedings of the 1998 ACM SIGMOD international conference on Management of data
Developing a context-aware electronic tourist guide: some issues and experiences
Proceedings of the SIGCHI conference on Human Factors in Computing Systems
A spatial model of interaction in large virtual environments
ECSCW'93 Proceedings of the third conference on European Conference on Computer-Supported Cooperative Work
Mobile access to real-time information—the case of autonomous stock brokering
Personal and Ubiquitous Computing
Mobile Technology, Compensatory Aids, and Usability Evaluations
IEEE Pervasive Computing
Augmenting audio messages with visual directions in mobile guides: an evaluation of three approaches
Proceedings of the 7th international conference on Human computer interaction with mobile devices & services
A scheduling framework for enterprise services
Journal of Systems and Software
Field evaluation of a mobile location-based notification system for police officers
Proceedings of the 10th international conference on Human computer interaction with mobile devices and services
Out on the town: A socio-physical approach to the design of a context-aware urban guide
ACM Transactions on Computer-Human Interaction (TOCHI)
An index-based privacy preserving service trigger in context-aware computing environments
Expert Systems with Applications: An International Journal
User acceptance of digital tourist guides lessons learnt from two field studies
HCI'07 Proceedings of the 12th international conference on Human-computer interaction: interaction design and usability
Extensible platform for location based services provisioning
WISEW'03 Proceedings of the Fourth international conference on Web information systems engineering workshops
Mobile Multimedia: Reflecting on Dynamic Service Provision
International Journal of Ambient Computing and Intelligence
Spatialized Audio Environmental Awareness for Blind Users with a Smartphone
Mobile Networks and Applications
Over-Fitting and Error Detection for Online Role Mining
International Journal of Web Services Research
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Despite much interest over recent years in the area of context-aware computing, there are still a number of significant gaps in our understanding of the HCI issues associated with such systems. One particular issue that remains relatively unexplored is how to design around the apparently conflicting goals of adapting to changes in context while at the same time adhering to the principle of predictability. In this paper, we describe our exploration into this issue through two alternative designs of an interactive context-aware tourist guide. One original design was based around information pull, i.e. the emphasis is on the user to decide when context-aware information is presented. Our second design incorporates the notion of information push whereby the actual presentation of context-aware information is triggered by contextual events, e.g. changes in the user’s location or changes to the opening times of attractions. Through the evaluation of these alternative designs we hope to gain a better understanding of the usability implications relating to push vs. pull in both this specific domain and in interactive context-aware systems in general.