Managing heterogeneous multi-system tasks to support enterprise-wide operations
Distributed and Parallel Databases - Special issue on software support for work flow management
Dynamic change within workflow systems
COCS '95 Proceedings of conference on Organizational computing systems
Supporting unstructured workflow activities in the Bramble ICN system
COCS '95 Proceedings of conference on Organizational computing systems
WorkFlow systems: a few definitions and a few suggestions
COCS '95 Proceedings of conference on Organizational computing systems
How to deal with deviations during process model enactment
Proceedings of the 17th international conference on Software engineering
Handling uncertainties in workflow applications
CIKM '96 Proceedings of the fifth international conference on Information and knowledge management
LabFlow-1: A Database Benchmark for High-Throughput Workflow Management
EDBT '96 Proceedings of the 5th International Conference on Extending Database Technology: Advances in Database Technology
Methodical Restructuring of Complex Workflow Activities
ICDE '98 Proceedings of the Fourteenth International Conference on Data Engineering
DSDT: Durable Scripts Containing Database Transactions
ICDE '96 Proceedings of the Twelfth International Conference on Data Engineering
Failure Handling and Coordinated Execution of Concurrent Workflows
ICDE '98 Proceedings of the Fourteenth International Conference on Data Engineering
A Multidatabase Transaction Model for InterBase
VLDB '90 Proceedings of the 16th International Conference on Very Large Data Bases
COOPIS '96 Proceedings of the First IFCIS International Conference on Cooperative Information Systems
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Ad-hoc recovery is a phenomenon that occurs in work ow applications when an agent needs to alter the control flow prescribed in the original definition. It is usually caused by unpredictable reasons, such as an unexpected output of some individual tasks, events or exceptions due to the changing environment, etc. Due to its irregularity in nature, ad-hoc recovery in general cannot be dealt with by using pre-defined exception handler. On the other hand, since it allows changes without following a particular pattern, it offers greater flexibility than many existing work flow products do. In this paper, we introduce the concepts relating to ad-hoc recovery, and suggests approaches to supporting this phenomenon in practical applications. We concentrate on the architectural aspects at the work flow management system level, and describe functionalities of the main components and their interactions.