The KIPS Transactions:PartA (정보처리학회논문지A)

Korea Information Processing Society (한국정보처리학회)
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Meta Service: Mapping of a Service Request to a Workflow in Grid Environments

그리드 환경에서 워크플로우의 서비스 매핑을 위한 메타 서비스

  • 이상근 (숭실대학교 컴퓨터학과) ;
  • 최재영 (숭실대학교 정보과학대학 컴퓨터학부) ;
  • 황석찬 (한국과학기술정보연구원)
  • Published : 2005.08.01
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Abstract

Many jobs in Grid environments consist of several subtasks, and these subtasks can be represented by a workflow, which is executed effectively on a Grid. In this paper, we present Meta services which describe a mapping from a service request to a workflow in Grid environments. By using Meta services, a workflow in Grid environments could adapts various service concepts such as portal services, Grid services, and Web services. And the workflow can be shared and reused among workflow users. Furthermore, historical performance data can be included in Meta services, so effective scheduling of the workflow is also possible.

그리드 환경에서 수행되는 작업 중 많은 작업들은 연관된 작업들이 서로 결합된 워크플로우의 형태로 수행된다. 이러한 워크플로우를 서비스로 추상화한다면 사용자는 보다 손쉽게 워크플로우로 구성된 작업을 수행할 수 있다. 본 논문에서는 워크플로우를 서비스로 매핑하기 위한 메타 서비스를 정의하였다. 이 메타 서비스를 사용하면 워크플로우를 포탈 서비스, 그리드 서비스, 웹 서비스 등으로 쉽게 변환할 수 있다. 또한 워크플로우 사용자들 간에 워크플로우를 서비스의 형태로 공유하는 것도 역시 가능해진다. 마지막으로 과거의 성능 데이터 등의 서비스를 효율적으로 수행할 수 있는 정보들을 제공하여 QoS를 향상시킬 수 있다.

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