NDLI: Towards an actor-driven workflow management system for grids

Content Provider	IEEE Xplore Digital Library
Author	Berretz, F. Skorupa, S. Sander, V. Belloum, A.
Copyright Year	2010
Description	Author affiliation: FH Aachen University of Applied Science, GER (Berretz, F.; Skorupa, S.; Sander, V.) \|\| University of Amsterdam, NL (Belloum, A.)
Abstract	Currently, most workflow management systems in Grid environments provide push-oriented job distribution strategies, where jobs are explicitly delegated to resources. In those scenarios the dedicated resources execute submitted jobs according to the request of a workflow engine or Grid wide scheduler. This approach has various limitations, particularly if human interactions should be integrated in workflow execution. To support human interactions with the benefit of enabling inter organizational computation and community approaches, this poster paper proposes the idea of a pull-based task distribution strategy. Here, heterogeneous resources, including human interaction, should actively select tasks for execution from a central repository. This leads to special demands regarding security issues like access control. In the established push-based job execution the resources are responsible for granting access to workflows and job initiators. In general this is done by access control lists, where users are explicitly mapped to local accounts according to their policies. In the pull-based approach the resources actively apply for job executions by sending requests to a central task repository. This means that every resource has to be able to authenticate against the repository to be authorized for task execution. In other words the authorization is relocated from the resources to the repository. The poster paper introduces current work regarding to the mentioned security aspects in the pull-based approach within the scope of the project “HiX4AGWS”.
Starting Page	611
Ending Page	616
File Size	144912
Page Count	6
File Format	PDF
ISBN	9781424466191
e-ISBN	9781424466221
DOI	10.1109/CTS.2010.5478458
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2010-05-17
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Access control Workflow Management Distribution strategy Humans Scheduling Security Engines Job Distribution Grid Computing Authorization Human Task Grid computing Resource management Workflow management software
Content Type	Text
Resource Type	Article

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