A Distributed Execution Environment for Large-Scale Workflow Management Systems with Subnets and Server Migration

If the number of users within a workjlow management system (WFMS) increases, a central workflow server (WFserver) and a single local area network (LAN) may become overloaded. The approach presented in this paper describes an execution environment which is able to manage a growing number of users by adding new servers and subnets. The basic idea is to decompose processes into parts which are controlled by different WF-servers. That is, during the execution of a workjlow instance its execution (step) control may migrate from one WF-server to another: By selecting the appropriate physical servers (for hosting the WF-servers) in the appropriate LAiVs, communication costs and individual WF-server workload can be reduced significantly.

• Type: Conference
• Year: 1997
• Where: COOPIS
• Authors: Thomas Bauer, Peter Dadam
• Keywords: Appropriate Physical Servers, Central Workflow Server, COOPIS 1997, Information Management, Single Local Area