Title
Toward Dynamic Adoption for a User's Situation Information in a Context-Aware Workflow System
Abstract
Recently, there are many studies to adopt the workflow model, which has been successively applied to traditional computing environments, into ubiquitous computing environments for context-aware and autonomous services. A service in the ubiquitous computing environments must be executed according to a user's situation information, which is generated dynamically from sensors. However, such existing workflow systems as FollowMe and uFlow to support context-aware services through workflow models, can't immediately adopt changes of a user's situation into a already on-going service workflow. In this paper, we propose a context-aware workflow system, for ubiquitous computing environments, which can apply changes of user's service demand or situation information into an on-going workflow without breaking its operation. To do this, the proposed system represents contexts described in a workflow as a RDF-based DItree (Document Instance tree). The system uses the tree information to recognize a exact position to be changed in the on-going workflow for user's situation changes, and to reconstruct only the position under the influence of the changes in the DItree. Therefore, the suggested system can quickly and efficiently apply a change of user's new situation into a on-going workflow without a lot loss of the time and the space, and can offer a context-aware service continuously, according to a new workflow.
Year
DOI
Venue
2007
10.1007/978-3-540-72588-6_41
International Conference on Computational Science (3)
Keywords
Field
DocType
context-aware service,existing workflow system,context-aware workflow system,workflow model,new workflow,on-going service workflow,dynamic adoption,situation information,ubiquitous computing environment,on-going workflow,new situation
World Wide Web,Workflow technology,Computer science,Computer network,Home automation,Human–computer interaction,Ubiquitous computing,Service demand,Workflow engine,Workflow,Workflow management system,RDF
Conference
Volume
ISSN
Citations 
4489
0302-9743
1
PageRank 
References 
Authors
0.36
7
4
Name
Order
Citations
PageRank
Yongyun Cho19821.02
Kyoungho Shin2101.79
Jongsun Choi3276.10
Jae-Young Choi4783110.19