Adept_flex—Supporting Dynamic Changes of Workflows Without Losing Control
Journal of Intelligent Information Systems - Special issue on workflow management systems
Analyzing process models using graph reduction techniques
Information Systems - The 11th international conference on advanced information systems engineering (CAiSE*
Workflow management: models, methods, and systems
Workflow management: models, methods, and systems
Distributed and Parallel Databases
Why and Where: A Characterization of Data Provenance
ICDT '01 Proceedings of the 8th International Conference on Database Theory
A Formal Approach to Workflow Analysis
Information Systems Research
Tool Support for Verifying UML Activity Diagrams
IEEE Transactions on Software Engineering
Applying Propositional Logic to Workflow Verification
Information Technology and Management
Data flow and validation in workflow modelling
ADC '04 Proceedings of the 15th Australasian database conference - Volume 27
Symbolic model checking of UML activity diagrams
ACM Transactions on Software Engineering and Methodology (TOSEM)
Analyzing workflows implied by instance-dependent access rules
Proceedings of the twenty-fifth ACM SIGMOD-SIGACT-SIGART symposium on Principles of database systems
Taverna: lessons in creating a workflow environment for the life sciences: Research Articles
Concurrency and Computation: Practice & Experience - Workflow in Grid Systems
Scientific workflow management and the Kepler system: Research Articles
Concurrency and Computation: Practice & Experience - Workflow in Grid Systems
On the suitability of UML 2.0 activity diagrams for business process modelling
APCCM '06 Proceedings of the 3rd Asia-Pacific conference on Conceptual modelling - Volume 53
Metagraphs and Their Applications (Integrated Series in Information Systems)
Metagraphs and Their Applications (Integrated Series in Information Systems)
The representation, analysis and verification of business processes: a metagraph-based approach
Information Technology and Management
Formulating the Data-Flow Perspective for Business Process Management
Information Systems Research
Developing a Workflow Design Framework Based on Dataflow Analysis
HICSS '08 Proceedings of the Proceedings of the 41st Annual Hawaii International Conference on System Sciences
On the relationship between workflow models and document types
Information Systems
An analysis and taxonomy of unstructured workflows
BPM'05 Proceedings of the 3rd international conference on Business Process Management
A framework for document-driven workflow systems
BPM'05 Proceedings of the 3rd international conference on Business Process Management
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When designing a business workflow, it is customary practice to create the control flow structure first and to ensure its correctness. Information about the flow of data is introduced subsequently into the workflow and its correctness is independently verified. Improper specification of data requirements of tasks and XOR splits can cause problems such as wrong branching at XOR splits and the failure of tasks to execute. Here we present a graph traversal algorithm called GTforDF for detecting data flow errors in both nested and unstructured workflows, and illustrate its operation on realistic examples. Two of these have interconnected loops and are free of control flow errors, and the third one is an unstructured loop-free workflow. Our approach extends and generalizes data flow verification methods that have been recently proposed. It also makes use of the concept of corresponding pairs lately introduced in control flow verification. It thus has the potential for development into a unified algorithmic procedure for the concurrent detection of control flow and data flow errors. The correctness of the algorithm has been proved theoretically. It has also been tested experimentally on many examples.