A context lifecycle management scheme for resolving non-deterministic situation in ubiquitous computing environments = 유비쿼터스 컴퓨팅 환경에서 상황정보 식별을 위한 컨텍스트 생명주기 관리 기법

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In the context-aware services, a context activates services for the user and is subject to a certain duration of validity, which we call a context lifecycle in this thesis. Existing context management researches use Event-Condition-Action (ECA) policy by simply assuming that contexts are generated and terminated in one-after-another fashion. We observed, however, the possibilities of multiple contexts (i.e. situations) that are active in the common time frame, which allows that a new context may not only be terminated but temporarily deactivated or even co-active with the previous context depending on the context relationships between them. Their corresponding services are also required to adapt themselves accordingly along with the lifecycles of the contexts thus implementing more sophisticated user services. In this thesis, we propose a context lifecycle management scheme based on an extended ECA policy, called Event-Condition-(context)State-Action (ECSA). The proposed scheme has been imported into our context management system. We also show how the proposed idea suits more sophisticated context-aware services in ubiquitous computing environments.
Advisors
Hyun, Soon-Jooresearcher현순주researcher
Description
한국정보통신대학교 : 공학부,
Publisher
한국정보통신대학교
Issue Date
2006
Identifier
392712/225023 / 020044604
Language
eng
Description

학위논문(석사) - 한국정보통신대학교 : 공학부, 2006.8, [ ix, 72 p. ]

Keywords

Context State; Context Lifecycle; Context-awareness; ECSA policy; ECSA 정책; 컨텍스트 상태; 컨텍스트 생명주기; 상황인지

URI
http://hdl.handle.net/10203/55504
Link
http://library.kaist.ac.kr/search/detail/view.do?bibCtrlNo=392712&flag=dissertation
Appears in Collection
School of Engineering-Theses_Master(공학부 석사논문)
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