Quality of Use Context
by
Benedikt Liegener
—
last modified
Jul 13, 2011 16:19
—
filed under:
QualityAttribute,
KnowledgeModel
Definitions
| Term: Quality of Use Context |
Domain: Cross-cutting issues | ||||
|---|---|---|---|---|---|
| Engineering and Design (KM-ED) |
Adaptation and Monitoring (KM-AM) |
Quality Definition, Negotiation and
Assurance (KM-QA) |
Generic (domain independent) |
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| D o m a i n : L a y e r s |
Business Process Management (KM-BPM) |
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| Service Composition and
Coordination (KM-SC) |
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| Service Infrastructure (KM-SI) |
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| Generic (domain independent) |
A service can become adaptive if it can change its
configuration, behavior and appearance based on the context, where “context
is any information than can characterize the situation of the entity.
An entity is a person, place or object that is considered relevant to
the interaction of a user and an application including the user and the
application themselves” ([Dey 2000]). So based on this definition,
which is quite general, context is any information that characterizes
the service and its user, their physical and execution environments
(including the devices used) and the network that connects them.
Context information has also quality ([Gray, Salber, 2001], [Buchholz
et al. 2003], [Sheikh et al. 2008]) as it depends on the way it is
sensed or derived, the time that it is produced and delivered, the
level of detail and other factors. [CD-JRA-1.3.2] {GEN: Quality Attribute} {SPC: Precision, Resolution, Probability of Correctness,
Trust-Worthiness, Coverage} |
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Competencies
- POLIMI: Context-aware invocation of Web Services; http://home.dei.polimi.it/pernici/ws-research.html; Barbara Pernici, Pierluigi Plebani, Cinzia Cappiello, Marco Comuzzi
- UniHH: Context Management and Mobile Computing http://vsis-www.informatik.uni-hamburg.de/information; Winfried Lamersdorf, Sonja Zaplata
Scenarios
TBD
References
- [CD-JRA-1.3.2] "Quality reference model for service-based applications"
- [Buchholz et al. 2003] Thomas Buchholz, Axel K¨ upper, and Michael
Schiffers. Quality of context: What it is and why we need it. In 10th
InternationalWorkshop of the HP OpenView University Association (HPOVUA
2003), Geneva, Switzerland, 2003.
- [Dey 2000] A.K. Dey. Architectural support for building context-aware applications. Phd thesis, College of Computing, Georgia Institute of Technology, December 2000.
- [Gray, Salber, 2001] Philip D. Gray and Daniel Salber. Modelling and using sensed context information in the design of interactive applications. In EHCI ’01: Proceedings of the 8th IFIP International Conference on Engineering for Human-Computer Interaction, pages 317–336, Toronto, Canada, 2001. Springer- Verlag.
- [Sheikh et al. 2008] K. Sheikh, M. Wegdam, and M. J. van Sinderen.
Quality-of-context and its use for protecting privacy in context aware
systems. Journal of Software, 3(3):83–93, March 2008.
