We then separate the context acquisition function from context aware services. This strategy leverages our load
by reusing existing context acquisition functions. Context acquisition can be done by three approaches. The first
approach is through filling in a form in which context is acquired directly from learners’ inputs. The second
approach is context detection in which we utilize various sensing, recording, and positioning systems such as
GPS, RFID, and sensor networks for location detection. The third approach is context extraction which is to
derive contextual information from learner personal ontology and service ontology. The first approach in filling
in a form is mainly used to construct personnel profile, preferences, calendar profile, and social profile. Since
this approach is self explanatory we will concentrate on the other two approaches, context detection and context
extraction.
We then separate the context acquisition function from context aware services. This strategy leverages our loadby reusing existing context acquisition functions. Context acquisition can be done by three approaches. The firstapproach is through filling in a form in which context is acquired directly from learners’ inputs. The secondapproach is context detection in which we utilize various sensing, recording, and positioning systems such asGPS, RFID, and sensor networks for location detection. The third approach is context extraction which is toderive contextual information from learner personal ontology and service ontology. The first approach in fillingin a form is mainly used to construct personnel profile, preferences, calendar profile, and social profile. Sincethis approach is self explanatory we will concentrate on the other two approaches, context detection and contextextraction.
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