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ID: 520368.0, MPI für Informatik / Databases and Information Systems Group
Workflow management with service quality guarantees.
Authors:Gillmann, Michael; Weikum, Gerhard; Wonner, Wolfgang
Language:English
Publisher:ACM
Place of Publication:New York, USA
Date of Publication (YYYY-MM-DD):2002
Title of Proceedings:Proceedings of the 2002 ACM SIGMOD International Conference on Management of Data
Start Page:228
End Page:239
Title of Series:Lecture Notes in Computer Science
Place of Conference/Meeting:Madison, Wisconsin
(Start) Date of Conference/Meeting
 (YYYY-MM-DD):
2002-06-03
End Date of Conference/Meeting 
 (YYYY-MM-DD):
2002-06-06
Copyright:Copyright 2002 VLDB Endowment
Audience:Experts Only
Intended Educational Use:No
Abstract / Description:Workflow management systems ({WFMS}) that are geared for the orchestration of
business processes across multiple organizations are complex distributed
systems: they consist of multiple workflow engines, application servers, and
communication middleware servers such as {ORB}s, where each of these server
types can be replicated on multiple computers for scalability and
availability.Finding an appropriate system configuration with guaranteed
application-specific quality of service in terms of throughput, response time,
and tolerable downtime is a major challenge for human system administrators.
This paper presents a tool that largely automates the task of configuring a
distributed WFMS. Based on a suite of mathematical models, the tool derives the
necessary degrees of replication for the various server types in order to meet
specified goals for performance and availability as well as "performability"
when service is degraded due to outages of individual servers. The paper
describes the configuration tool, with emphasis on how to capture the load
behavior of workflows in a realistic manner. We also present extensive
experiments that evaluate the accuracy of the tool's underlying models and
demonstrate the practical feasibility of automating the task of configuring a
distributed {WFMS}. The experiments use a detailed simulation which in turn has
been validated through measurements with the Mentor-lite prototype system.
Last Change of the Resource (YYYY-MM-DD):2005-03-11
External Publication Status:published
Document Type:Conference-Paper
Communicated by:Gerhard Weikum
Affiliations:MPI für Informatik/Databases and Information Systems Group
Identifiers:LOCALID:C1256DBF005F876D-AC9E0C3CA20A5FC8C1256FC1004D0739-...
ISBN:1-58113-497-5
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