PERFORMING WORKFLOW HAVING A SET OF DEPENDENCY-RELATED PREDEFINED ACTIVITIES ON A PLURALITY OF TASK SERVERS

摘要

PROBLEM TO BE SOLVED: To provide reliable fault handling in a distribution process at a plurality of servers of a workflow application.;SOLUTION: Each task server 22 includes an operating system 40 which locally runs a respective task server process 42. The workflow process 42 run on the task server 22 requests a workflow task from a schedule queue that identifies the workflow task ready to be performed. When the task server process 42 completes a task, the task server process 42 requests a new task from the queue. If the task partially performed fails or stalls improperly, a workflow management server 24 detects this situation, rolls back a certain transaction of the task, and queues the task again.;COPYRIGHT: (C)2011,JPO&INPIT