Abstract
| Original language | English |
|---|---|
| Qualification | Doctor Degree |
| Awarding Institution |
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| Supervisors/Advisors |
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| Award date | 25 Nov 2005 |
| Place of Publication | Espoo |
| Publisher | |
| Print ISBNs | 951-38-6669-6 |
| Electronic ISBNs | 951-38-6670-X |
| Publication status | Published - 2005 |
| MoE publication type | G4 Doctoral dissertation (monograph) |
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Keywords
- mobile computing
- context-aware computing
- mobile interaction
- mobile context awareness
- application control
- blackboard-based architecture
- software framework
- context management
- information model
- application programming interface
- sensor-based interaction
- customization
- end-user development
- personalization
Cite this
}
Blackboard-based software framework and tool for mobile device context awareness : Dissertation. / Korpipää, Panu.
Espoo : VTT Technical Research Centre of Finland, 2005. 229 p.Research output: Thesis › Dissertation
TY - THES
T1 - Blackboard-based software framework and tool for mobile device context awareness
T2 - Dissertation
AU - Korpipää, Panu
PY - 2005
Y1 - 2005
N2 - The usage needs of a mobile device vary according to context. Mobile context awareness research aims at providing the device user with a way of usage that suits the situation. Interaction based on context requires acquiring, abstracting and delivering information from multiple sources, such as sensors, to the application or application control. A generic software framework and tool for facilitating the rapid development of mobile device context-aware applications were developed in this work. The blackboard-based framework supports all tasks that are required for context-based application control, where contexts can be any events that are relevant to user interaction with the application, including explicit inputs. The core component of the framework, Context Manager, provides a publish and subscribe mechanism and a database for the applications and application control. The framework provides an application programming interface (API) for developers. As a higher abstraction-level programming interface, a customization tool enables easy end-user development of context-aware features into existing applications without changing them. An extensible ontology is used as a uniform context representation within the framework. The purpose of the ontology, together with the API, is to enable easy access, use and reuse of human-understandable context information. Context information sources, such as sensors, often produce a continuous stream of low abstraction-level data. The framework supports the transformation of a continuous data stream into abstracted context events, described in the ontology. Context information is delivered to applications or application control as abstracted events. The main result of the dissertation is a software framework, ontology and tool, which facilitate the customization of sensor-based human-computer interaction in mobile devices. The practical applicability, scope, and computational efficiency of the implemented framework and customization tool are evaluated with performance measurements and multiple applications implemented in a mobile phone with real sensor sources.
AB - The usage needs of a mobile device vary according to context. Mobile context awareness research aims at providing the device user with a way of usage that suits the situation. Interaction based on context requires acquiring, abstracting and delivering information from multiple sources, such as sensors, to the application or application control. A generic software framework and tool for facilitating the rapid development of mobile device context-aware applications were developed in this work. The blackboard-based framework supports all tasks that are required for context-based application control, where contexts can be any events that are relevant to user interaction with the application, including explicit inputs. The core component of the framework, Context Manager, provides a publish and subscribe mechanism and a database for the applications and application control. The framework provides an application programming interface (API) for developers. As a higher abstraction-level programming interface, a customization tool enables easy end-user development of context-aware features into existing applications without changing them. An extensible ontology is used as a uniform context representation within the framework. The purpose of the ontology, together with the API, is to enable easy access, use and reuse of human-understandable context information. Context information sources, such as sensors, often produce a continuous stream of low abstraction-level data. The framework supports the transformation of a continuous data stream into abstracted context events, described in the ontology. Context information is delivered to applications or application control as abstracted events. The main result of the dissertation is a software framework, ontology and tool, which facilitate the customization of sensor-based human-computer interaction in mobile devices. The practical applicability, scope, and computational efficiency of the implemented framework and customization tool are evaluated with performance measurements and multiple applications implemented in a mobile phone with real sensor sources.
KW - mobile computing
KW - context-aware computing
KW - mobile interaction
KW - mobile context awareness
KW - application control
KW - blackboard-based architecture
KW - software framework
KW - context management
KW - information model
KW - application programming interface
KW - sensor-based interaction
KW - customization
KW - end-user development
KW - personalization
M3 - Dissertation
SN - 951-38-6669-6
T3 - VTT Publications
PB - VTT Technical Research Centre of Finland
CY - Espoo
ER -