Context-aware pervasive systems
Encyclopedia
Context-aware computing refers to a general class of mobile systems that can sense their physical environment, and adapt their behavior accordingly. Such systems are a component of a ubiquitous computing
or pervasive computing environment. Three important aspects of context are: (1) where you are; (2) who you are with; and (3) what resources are nearby. Although location is a primary capability, location-aware does not necessarily capture things of interest that are mobile or changing. Context-aware in contrast is used more generally to include nearby people, devices, lighting, noise level, network availability, and even the social situation; e.g., whether you are with your family or a friend from school.
also see Context aware delegation
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research at Xerox PARC and elsewhere in the early 1990s. The term 'context-aware' was first used by Schilit and Theimer in their 1994 paper Disseminating Active Map Information to Mobile Hosts where they describe a model of computing in which users interact with many different mobile and stationary computers and classify a context-aware systems as one that can adapt according to its location of use, the collection of nearby people and objects, as well as the changes to those objects over time over the course of the day.
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Ubiquitous computing
Ubiquitous computing is a post-desktop model of human-computer interaction in which information processing has been thoroughly integrated into everyday objects and activities. In the course of ordinary activities, someone "using" ubiquitous computing engages many computational devices and systems...
or pervasive computing environment. Three important aspects of context are: (1) where you are; (2) who you are with; and (3) what resources are nearby. Although location is a primary capability, location-aware does not necessarily capture things of interest that are mobile or changing. Context-aware in contrast is used more generally to include nearby people, devices, lighting, noise level, network availability, and even the social situation; e.g., whether you are with your family or a friend from school.
also see Context aware delegation
Context aware delegation
Use of contextual information of a delegatee to mitigate this violation, which helps to achieve a higher level of practical security in nomadic environments used by nomadic user ....
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History
The concept emerged out of ubiquitous computingUbiquitous computing
Ubiquitous computing is a post-desktop model of human-computer interaction in which information processing has been thoroughly integrated into everyday objects and activities. In the course of ordinary activities, someone "using" ubiquitous computing engages many computational devices and systems...
research at Xerox PARC and elsewhere in the early 1990s. The term 'context-aware' was first used by Schilit and Theimer in their 1994 paper Disseminating Active Map Information to Mobile Hosts where they describe a model of computing in which users interact with many different mobile and stationary computers and classify a context-aware systems as one that can adapt according to its location of use, the collection of nearby people and objects, as well as the changes to those objects over time over the course of the day.
See also
- Context awarenessContext awarenessContext awareness is defined complementary to location awareness. Whereas location may serve as a determinant for resident processes, context may be applied more flexibly with mobile computing with any moving entities, especially with bearers of smart communicators...
- Differentiated service (design pattern)
- Ubiquitous computingUbiquitous computingUbiquitous computing is a post-desktop model of human-computer interaction in which information processing has been thoroughly integrated into everyday objects and activities. In the course of ordinary activities, someone "using" ubiquitous computing engages many computational devices and systems...
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- Xerox PARCTAB is generally considered the first context-aware mobile computer.
- First International Workshop on Quality of Context (QuaCon '09), 25 - 26 June, 2009, Stuttgart, Germany
- 4th International Workshop on Location- and Context-Awareness (LoCA 2009), 7 - 8 May 2009, Tokyo Japan
- 3rd International Workshop on Location- and Context-Awareness (LoCA 2007), 20 - 21 September 2007, Oberpfaffenhofen near Munich (DLR), Germany
- 2nd International Workshop on Location- and Context-Awareness (LoCA 2006), 10 - 11 May 2006, Dublin Ireland
- 1st International Workshop on Location- and Context-Awareness (LoCA 2005), 12 - 13 May 2005, Oberpfaffenhofen near Munich (DLR), Germany
- Pervasive Computing and Mental HealthTechnology and mental health issuesThe use of communicative and other new technologies as a supplement to mainstream therapies for mental disorders is an emerging mental health treatment field which, it is argued, could improve the accessibility, effectiveness and affordability of mental health care...