On building workflow models for flexible processes
ADC '02 Proceedings of the 13th Australasian database conference - Volume 5
Schema Evolution in Heterogeneous Database Architectures, A Schema Transformation Approach
CAiSE '02 Proceedings of the 14th International Conference on Advanced Information Systems Engineering
Workflow Specification in TRAMs
ER '99 Proceedings of the 18th International Conference on Conceptual Modeling
Pockets of Flexibility in Workflow Specification
ER '01 Proceedings of the 20th International Conference on Conceptual Modeling: Conceptual Modeling
Flexible Support of Team Processes by Adaptive Workflow Systems
Distributed and Parallel Databases
Correctness criteria for dynamic changes in workflow systems: a survey
Data & Knowledge Engineering - Special issue: Advances in business process management
Specification and validation of process constraints for flexible workflows
Information Systems
On using OO techniques to establish workflow conformance
Proceedings of the 2006 ACM symposium on Applied computing
Applying algebraic approaches for modeling workflows and their transformations in mobile networks
Mobile Information Systems
A timed colored Petri nets modeling for dynamic workflow in product development process
Computers in Industry
Supporting the dynamic evolution of Web service protocols in service-oriented architectures
ACM Transactions on the Web (TWEB)
Analysis of workflow dynamic changes based on Petri net
Information and Software Technology
Relaxed Compliance Notions in Adaptive Process Management Systems
ER '08 Proceedings of the 27th International Conference on Conceptual Modeling
On Measuring Process Model Similarity Based on High-Level Change Operations
ER '08 Proceedings of the 27th International Conference on Conceptual Modeling
Versions to Address Business Process Flexibility Issue
ADBIS '09 Proceedings of the 13th East European Conference on Advances in Databases and Information Systems
Evaluation of correctness criteria for dynamic workflow changes
BPM'03 Proceedings of the 2003 international conference on Business process management
Version management in the business process change context
BPM'07 Proceedings of the 5th international conference on Business process management
Declarative workflows to efficiently manage flexible and advanced business processes
Proceedings of the 12th international ACM SIGPLAN symposium on Principles and practice of declarative programming
Tool support for dynamic development processes
Graph transformations and model-driven engineering
Efficient change management in long-term composed services
Service Oriented Computing and Applications
Dynamic workflow modeling and verification
CAiSE'06 Proceedings of the 18th international conference on Advanced Information Systems Engineering
Proceedings of the 34th International Conference on Software Engineering
Version management for business process schema evolution
Information Systems
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An important yet open problem in workflow management is the evolution of workflow schemas, i.e., the creation, deletion and modification of workflow types in such a way that the schema remains correct. This problem is aggravated when instances of modified workflow types are active at the time of modification, because any workflow instance has to conform to the definition of its type.This paper presents a framework for dynamic workflow schema evolution that is based on workflow type versioning and workflow migration. Workflow types can be versioned, and a new version can be derived from an existing one by applying modification operations. Workflow type versions allow to handle active instances in an elegant way whenever a schema is modified. If possible, an affected workflow instance is migrated to the new version of its type. Otherwise, it continues to execute under its old type. We introduce correctness criteria that must be met by workflow schemas and workflow schema modification operations. We also define under which conditions the migration of workflow instances to new workflow type versions is allowed.