Workflow Data Guards

Eder, Johann; Lehmann, Marek

doi:10.1007/11575771_32

Cited by 2 publications

(8 citation statements)

References 5 publications

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“…for business process automation, scheduling and control, network monitoring and performance prediction etc. The authors of [2] introduced workflow data guards which are constraints defined over specified parts of a workflow. The guard is specified in a workflow definition, consists of a condition, a set of activities that activate the guard for the first time in a workflow instance and a set of guarded activities.…”

Section: Related Workmentioning

confidence: 99%

“…The condition is a boolean expression which is defined on the data used in the workflow and checked during the execution of a guarded activity. The sensor guards are an extension to workflow data guards by [2] and use methods and basics how to build context aware workflow systems as in [6,7,5,8]. Furthermore for the realization of complex sensors techniques developed in the field of complex event processing [10] will be utilized.…”

Section: Related Workmentioning

confidence: 99%

“…Normal data can be updated at any point within or outside of an active workflow instance. As a solution to this problem Workflow Data Guards [2] have been proposed which monitor the data in all guarded activities in a workflow and can detect violation of a predefined set of constraints. Data Guards do not prevent changes of data performed outside of the workflow, however they detect those changes and allow the WfMS to react accordingly.…”

Section: Introductionmentioning

confidence: 99%

“…The choice of full blocked workflows might be seen as a restriction, however full-blocked workflows are less problematic than non-blocked workflows, as it is does not allow process definitions that suffer from problems like deadlocks during execution and [3] shows that non-blocked workflows can get problematic as soon as data-flow comes into play. The approach we present in this paper is an extension of data guards [2] to include generic sensors that will help to overcome the stated problems. The remainder of this paper is structured as follows: Section 2 gives an overview of related work about context-aware workflow systems and the data guard concept.…”

Section: Introductionmentioning

confidence: 99%

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Sensors and Guards in a Context-aware Workflow Environment

Kerschbaumer

Eder

2010

Proceedings of the International Joint Workshop on Technologies for Context-Aware Business Process Management, Advanced Enterpr

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We propose a system for integrating context awareness in workflow management systems. The context is captured via simple or complex sensors. The workflow management systems interacts with these sensors and can use data about the environment in making decisions about the control flow. Since the environment-and thus the context of workflow execution-may change, we introduce sensor guards which monitor the sensors during specified critical parts of the workflow execution and raise an exception when the data transmitted by sensors leave their expected ranges.

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Section: Related Workmentioning

confidence: 99%

Section: Related Workmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Sensors and Guards in a Context-aware Workflow Environment

Kerschbaumer

Eder

2010

Proceedings of the International Joint Workshop on Technologies for Context-Aware Business Process Management, Advanced Enterpr

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“…[4] integrated workflow model with production data model to support production development. [5] proposed data guard to guarantee significant changes in data. Nevertheless, no articles have given formal models linking the business form with data dependence and verification methods to check the soundness related to data.…”

Section: Introductionmentioning

confidence: 99%

Analyzing Data Dependence Based on Workflow Net

Huang

Wang

Wen

et al. 2007

Computational Science – ICCS 2007

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Abstract. Workflow management systems (WfMSs) frequently use data to coordinate the execution of workflow instances. A WfMS makes routing decisions according to data constraints. This paper presents an extended workflow net which has its business form and portrays data constraints among tasks which act as the decision condition. Data constraint is expressed by pre-condition and post-condition which formalize a task's input and output conditions. After introducing the model, we give an important definition of consistence related to data dependance. Then, we proposes a domain computation method during reduction to verify the consistence. The method considers data operation during reduction. In the end, a case study is analyzed by our method.

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Workflow Data Guards

Cited by 2 publications

References 5 publications

Sensors and Guards in a Context-aware Workflow Environment

Sensors and Guards in a Context-aware Workflow Environment

Analyzing Data Dependence Based on Workflow Net

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