Authors:
Tomasz Dziubich
;
Paweł Kaczmarek
and
Sławomir Nasiadka
Affiliation:
Gdańsk University of Technology, Poland
Keyword(s):
Ubiquitous systems, Service integration, Semantic information, Workflow systems.
Related
Ontology
Subjects/Areas/Topics:
Applications and Services
;
Computer Vision, Visualization and Computer Graphics
;
Context
;
Context-Aware Applications
;
Enterprise Information Systems
;
Human and Computer Interaction
;
Human-Computer Interaction
;
Mobile and Pervasive Computing
;
Paradigm Trends
;
Software Engineering
;
Telecommunications
;
Ubiquitous Computing Systems and Services
Abstract:
The paper presents a ubiquitous system that uses semantic information to manage dynamic changes in system elements. We design the system using the Context-Controller-Action architecture that covers the main parts of ubiquitous environments, including: environment devices (such as sensors and actuators), contexts and actions, all of which may be dynamically configured during system operation. A graphical user interface for the system is supplied, which enables non-expert users to perform changes in system configuration. Internally, semantic information is used throughout the system to define a common language between devices, contexts and services. A Web services interface is used in services that handle environment devices to support their integration with the system regardless of internally used communication protocols. The architecture was implemented as a framework for developing and running applications in ubiquitous environments. We integrated a number of devices in the framewor
k, including, RFID sensors, digital displays, cameras, electronic door locks and others. We also defined exemplary contexts and actions in the environment.
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