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A CAWL handler for context-aware composite workflow services

Journal of Measurement Science and Instrumentation 2013年第4期4卷 370-375页

作者： yongseong cho Jongsun choi Jaeyoung choi School of Computer Science and Engineering Soongsil University

In distributed computing environment,workflow technologies have been continuously ***,there is an attempt to apply these technologies to context-aware services in ubiquitous computing *** middleware,which offers services in such environments,should support the automation services suited for the user using various types of situational information around the *** this paper,based on context-aware workflow language(CAWL),we propose a CAWL based composite workflow handler for supporting composite workflow services,which can integrate more than two service flows and handle *** test results shows that the proposed CAWL handler can provide the user with the composite workflow services to cope with various demands on a basis of a scenario document founded on CAWL.

关键词： ubiquitous computing context-aware composite workflow context-aware workflow language (CAWL) handlerDocument code:AArticle ID:1674-8042(2013)04-0370-06

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维普期刊数据库

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Automatic generation of context-aware workflow documents for ubiquitous robot services

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Journal of Measurement Science and Instrumentation 2012年第3期3卷 260-267页

作者： yongseong cho Jongsun choi Jaeyoung choi School of Computer Science and Engineering Soongsil University

Intelligent robots in ubiquitous computing environment should be able to receive a variety of surrounding informa tion and provide users with appropriate services. A developer can describe the robot services that are proper to users＇ envir onments by using his or her various environments, and process them through the execution engine. However, it is difficult for a developer to describe and develop robot services, who knows all surrounding information which is called context infor mation. If there is a method for describing and documenting robot services in intuitive expressions, that is to use graphical user interfaces（GUls）, it would be very helpful. This paper suggests that robot service developers describe robot services us ing intuitive GUls with contextawareness. And the services can be automatically generated into workflow documents. Robot services that robot service developers have made with intuitive GUIs can be automatically generated into workflow docu ments by using the object modeling technique（OMT）. Developers can describe robot services based on contextaware work flow language（CAWL ）. For testing, scenariobased robot services are described using CAWLbased development tool, and their workflow documents are automatically generated.

关键词： ubiquitous robot service automatic generation context-aware workflow document(CAWL)

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维普期刊数据库

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Towards delivery of situational information in distributed environments

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Journal of Measurement Science and Instrumentation 2013年第3期4卷 282-285页

作者：孙成强 yongseong cho Jongsun choi Jaeyoung choi School of Computer Science and Engineering Soongsil University

In the distributed environment,robots should be able to provide users with adaptive services automatically according to the situational information changing dynamically which is obtained from both users and their *** workflow depends on situational information obtained from physical environments and provides context-aware services automatically based on the information *** the workflow in the business processes and the distributed computing environments have supported the automation of services by connecting *** workflow needs to specify ubiquitous situational information as state-transition ***,the delivery and use of sensor data in the workflow is a difficult problem for the robot *** order to bridge the gap between applications and low-level constructs and to acquire raw situational information for the execution of the context-aware workflow in the robot systems,this paper presents an approach which can achieve the sensor data transmission between a sensing server and a robot system easily.

关键词： publish/subscribe robot service workflow situational information distributed environmentsCLC number:TN919.72 Document code:AArticle ID:1674-8042(2013)03-0282-04

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维普期刊数据库

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