Title
Conflict detection and resolution for workflows constrained by resources and non-determined durations
Abstract
The correctness of a workflow specification is critical for the automation of business processes. Therefore, errors in the specification should be detected and corrected at build-time. In this paper, we present a conflict verification and resolution approach for a kind of workflow constrained by resources and non-determined duration based on Petri net. In this kind of workflow, there are two timing functions for each activity to present the minimum and maximum duration of each activity, and the implementations of some activities require resources. Based on the Petri net model obtained, the earliest time to start each activity can be calculated and the key activities influencing the implementation of the workflow can be determined, with which the resource consistency between activities can be verified. Key-activity and waiting-short priority strategies are adopted to remove the resource conflicts between activities, which can ensure that most of the subsequent activities start as early as possible and that the whole workflow be finished in a shorter time. Through experiments, it is proved that the proposed removal strategy for resource conflicts is better than other strategies.
Year
DOI
Venue
2008
10.1016/j.jss.2007.09.004
Journal of Systems and Software
Keywords
Field
DocType
workflow specification,petri net,workflow,whole workflow,subsequent activity,non-determined duration,conflict resolution,conflict detection,key activity,resource consistency,earliest time,maximum duration,resource conflict,shorter time,business process
Workflow technology,Petri net,Business process,Computer science,Correctness,Real-time computing,Implementation,Automation,Workflow management system,Workflow
Journal
Volume
Issue
ISSN
81
9
The Journal of Systems & Software
Citations 
PageRank 
References 
18
0.72
21
Authors
5
Name
Order
Citations
PageRank
Qingtian Zeng124243.67
Huaiqing Wang21345144.20
Dongming Xu344835.20
Hua Duan411019.58
Yanbo Han550059.74