Enterprise-Wide Workflow Management Based on State and Activity Charts

Muth, P.; Wodtke, Dirk; Weißenfels, Jeanine; Weikum, Gerhard; Dittrich, Angelika Kotz

doi:10.1007/978-3-642-58908-9_13

Cited by 43 publications

(29 citation statements)

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“…Workflows can be specified using various process languages that define activities, such as OMG's XMI (XML Meta Data Interchange) [27], UML [32], WFMC's process definition interchange language [12] or the State and Activity Chart-based specification languages [23,36]. Recently BPEL, Business Process Execution Language [14] has been emerged to specify the business processes and business interaction for Web Services.…”

Section: System Architecture and Implementationmentioning

confidence: 99%

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A decentralized execution model for inter-organizational workflows

Atluri

Chun

Mukkamala

et al. 2007

Distrib Parallel Databases

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Workflow Management Systems (WFMS) are often used to support the automated execution of business processes. In today's networked environment, it is not uncommon for organizations representing different business partners to collaborate for providing value-added services and products. As such, workflows representing the business processes in this loosely-coupled, dynamic and ad hoc coalition environment tend to span across the organizational boundaries. As a result, it is not viable to employ a single centralized WFMS to control the execution of the inter-organizational workflow due to limited scalability, availability and performance. To this end, in this paper, we present a decentralized workflow model, where inter-task dependencies are enforced without requiring to have a centralized WFMS. In our model, a workflow is divided into partitions called self-describing workflows, and handled by a light weight workflow management component, called the workflow stub, located at each organization. We present a performance study by considering different types of workflows with varying degrees of parallelism. Our performance results indicate that decentral-56 Distrib Parallel Databases (2007) 22: ized workflow management indeed enjoys significant gain in performance over its centralized counterpart in cases where there is less parallelism.

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Section: System Architecture and Implementationmentioning

confidence: 99%

“…Mentor, Mentor-Lite prototype [24,25,36] has an execution environment that is based on a distributed client-server architecture. Each workflow instance is executed by a number of MENTOR workflow servers.…”

Section: Related Workmentioning

confidence: 99%

A decentralized execution model for inter-organizational workflows

Atluri

Chun

Mukkamala

et al. 2007

Distrib Parallel Databases

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“…It is based on the Mentor workflow management system [24,25,42,43], but aims at a simpler architecture. The main goal is to provide only kernel functionality inside the workflow engine, and consider system components like history management and worklist management as extensions on top of the kernel.…”

Section: Mentor-lite Architecturementioning

confidence: 99%

Integrating light-weight workflow management systems within existing business environments

Muth

Weißenfels

Gillmann

et al. 1999

Proceedings 15th International Conference on Data Engineering (Cat. No.99CB36337)

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“…Petri nets and state charts are graph-based general-purpose process specification formalisms that have been applied to workflow specifications [23,31]. Event-condition-action rules have been widely used in active databases and they have been adopted in the specification of workflows as well [5,12].…”

Section: Introductionmentioning

confidence: 99%

Formalizing the specification and execution of workflows using the event calculus

Cicekli

Çiçekli

2006

Information Sciences

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Cataloged from PDF version of article.The event calculus is a logic programming formalism for representing events and their effects especially in database applications. This paper proposes the event calculus as a logic-based methodology for the specification and execution of workflows. It is shown that the control flow graph of a workflow specification can be expressed as a set of logical formulas and the event calculus can be used to specify the role of a workflow manager through a set of rules for the execution dependencies of activities. The proposed framework for a workflow manager maintains a history of events to control the execution of activities. The events are instructions to the workflow manager to coordinate the execution of activities. Based on the already occurred events, the workflow manager triggers new events to schedule new activities in accordance with the control flow graph of the workflow. The net effect is an alternative approach for defining a workflow engine whose operational semantics is naturally integrated with the operational semantics of a deductive database. Within this framework it is possible to model sequential and concurrent activities with or without synchronization. It is also possible to model agent assignment and execution of concurrent workflow instances. The paper, thus, contributes a logical perspective to the task of developing formalization for the workflow management systems. (C) 2005 Elsevier Inc. All rights reserved

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Enterprise-Wide Workflow Management Based on State and Activity Charts

Cited by 43 publications

References 0 publications

A decentralized execution model for inter-organizational workflows

A decentralized execution model for inter-organizational workflows

Integrating light-weight workflow management systems within existing business environments

Formalizing the specification and execution of workflows using the event calculus

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