Paper Info
Title
Dynamic Workflow Schema Evolution Based on Workflow Type Versioning and Workflow Migration
Abstract
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. The 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 us 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
Year
DOI
Venue
1999
10.1109/COOPIS.1999.792162
Dynamic Workflow Schema Evolution based on Workflow Type Versioningand Workflow Migration
Keywords
Field
DocType
dynamic workflow schema evolution,workflow type versioning,workflow instance,workflow type,workflow schema modification operation,workflow migration,modified workflow type,new workflow type version,affected workflow instance,workflow management,workflow schema,taxonomy,type theory,history,configuration management
Workflow Management Coalition,Workflow technology,Software engineering,Computer science,Windows Workflow Foundation,XPDL,Workflow engine,Schema evolution,Workflow management system,Workflow,Database,Distributed computing
Conference
ISBN
Citations 
PageRank 
0-7695-0384-5
70
6.83
References 
Authors
10
2
Name
Order
Citations
PageRank
Markus Kradolfer113234.96
Andreas Geppert2533108.02