The document discusses context and context-aware applications. It notes that there are approximately 150 definitions of context from different domains, and researchers do not agree on a single definition as context is an ill-defined concept. Context-aware computing allows applications to use contextual information like user location, time of day, nearby people and devices, and activity to provide a better understanding of users. Context-aware applications are interdisciplinary and use context to enhance the user experience. Examples of contextual information that can be used include location, time, activity, and nearby people or devices.

1. What is Context? What is Context-Aware
Application?
Zohreh Dehghani Champiri
z.dehghani@yahoo.com
PhD Candidate in Human
Computer Interaction,
Software Engineering Department
University of Malaya

2. Context
• There are approximately 150 definitions of
context coming mainly from the web in
different domains of disciplines. Researchers
2
different domains of disciplines. Researchers
are not unanimous in what context is. They
emphasized that context is an ill- defined
concept (Bazire and Brézillon, 2005).

3. Context
• There are approximately 150 definitions of
context coming mainly from the web in
different domains of disciplines. Researchers
2
different domains of disciplines. Researchers
are not unanimous in what context is. They
emphasized that context is an ill- defined
concept (Bazire and Brézillon, 2005).

4. Context
• There are approximately 150 definitions of
context coming mainly from the web in
different domains of disciplines. Researchers
2
different domains of disciplines. Researchers
are not unanimous in what context is. They
emphasized that context is an ill- defined
concept (Bazire and Brézillon, 2005).

5. Context
• There are approximately 150 definitions of
context coming mainly from the web in
different domains of disciplines. Researchers
2
different domains of disciplines. Researchers
are not unanimous in what context is. They
emphasized that context is an ill- defined
concept (Bazire and Brézillon, 2005).

6. Context
• There are approximately 150 definitions of
context coming mainly from the web in
different domains of disciplines. Researchers
2
different domains of disciplines. Researchers
are not unanimous in what context is. They
emphasized that context is an ill- defined
concept (Bazire and Brézillon, 2005).

7. Context Definition (Day, 2001)
7

8. Context-Aware Application?
“Context-Aware Computing (CAC)is a mobile computing
paradigm in which applications can discover and take advantage
of contextual information (such as user location, time of day,
nearby people and devices, and user activity)”(Chen, G., & Kotz,
D. , 2000)
8
D. , 2000)
Applications that use context to make a better understanding of
users, called Context-Aware Applications (Dey,2001).
CAC is an interdisciplinary research area in the field of HCI
(Panniello et al, 2009).

9. Example!
• Photo taken from Morikawa Laboratory
9

10. References
A.K. Dey, “Understanding and using context. Personal and ubiquitous
computing” Personal and Ubiquitous Computing, Special issue on
Situated Interaction and Ubiquitous Com- puting, vol. 5, no. 1, 2001.
M. Bazire, P. Brézillon, “Understanding context before using it, in
Modeling and using context” 5th In- ternational and Interdisciplinary
Conference, CONTEXT, pp.29–40, 2005.
N.Schilit and M. Theimer. "Disseminating active map information to
mobile hosts." Network, IEEE 8, no. 5,pp. 22-32.1994.
J. Pascoe, “Adding generic contextual capabilities to wearable
computers” Proceedings of the Second International Symposium on
WearableComputing, Pittsburgh, PA, October 19–20, 1998.
A.Dey and G. Abowd, “Towards a better understanding of context and
context-awareness”, Workshop on the what, who, where, when and how
of context-awareness at CHI 2000, April 2000.
10

11. References
Champiri, Z. D., Salim, S. S. B., & Shahamiri, S. R. The Role of Context for
Recommendations in Digital Libraries. International Journal of Social Science and
Humanity, 948-954.
A. J.-y. Hong, E.-h. Suh, and S.-J. Kim, “Context-aware systems: A literature
review and classification” Expert Systems with Applications, vol. 36, no. 4, p.
8509-8522, 2009.
P.J. Brown, J.D. Bovey, and X. Chen, “Context-aware applications: from theP.J. Brown, J.D. Bovey, and X. Chen, “Context-aware applications: from the
laboratory to the marketplace” IEEE Personal Communications, vol. 4, no. 5,
pp.58-64, 1997.
Champiri, Z. D., Shahamiri, S. R., & Salim, S. S. B. (2015). A systematic review of
scholar context-aware recommender systems. Expert Systems with
Applications, 42(3), 1743-1758.
Chen, G., & Kotz, D. (2000). A survey of context-aware mobile computing
research (Vol. 1, No. 2.1, pp. 2-1). Technical Report TR2000-381, Dept. of
Computer Science, Dartmouth College.
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12. Thank
You!
z.dehghani@yahoo.comHere is my email for any question
on this area