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A Grid workflow infrastructure
Author(s) -
Cybok Dieter
Publication year - 2005
Publication title -
concurrency and computation: practice and experience
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.309
H-Index - 67
eISSN - 1532-0634
pISSN - 1532-0626
DOI - 10.1002/cpe.998
Subject(s) - workflow , computer science , workflow management system , workflow technology , workflow engine , grid computing , grid , windows workflow foundation , xpdl , business process execution language , web service , semantic grid , software engineering , workflow management coalition , service oriented architecture , distributed computing , drmaa , database , world wide web , semantic web , geometry , mathematics
In this paper we propose a Grid workflow infrastructure, which serves as the base for specifying and executing collaborative interactive workflows within computational Grids. The infrastructure is based on the Open Grid Services Architecture (OGSA) and leverages the concepts of the Business Process Execution Language for Web Services (BPEL4WS). Using OGSA enables the exploitation of advanced Grid features such as factories, lifecycle management and notifications. Leveraging BPEL4WS to a Grid enabled workflow language has the advantage that basic workflow functionalities, which are similar for Grid and Web services, do not have to be developed again. The result is a state‐of‐the‐art Grid workflow infrastructure that was developed within a relatively short period. The main building blocks of the infrastructure are the specification of the Grid Workflow Execution Language (GWEL) notation and the implementation of a Grid workflow execution engine, using Globus Toolkit 3 (GT3) technology, for processing e‐Science specific workflows specified in GWEL documents. The workflow engine itself is a high‐level Grid service, hence automatically Grid aware, which can be used within any GT3 environment. Copyright © 2005 John Wiley & Sons, Ltd.