Performing a workflow having a set of dependancy-related predefined activities on a plurality of task servers

A system to perform a workflow which includes a set of dependency-related predefined activities, the system comprising:

• a plurality of task servers;
• and
• a workflow management server coupled to the plurality of task servers, wherein the workflow management server includes a processor, and the workflow management server is to:
• start a plurality of task server processes on the plurality of task servers, each task server providing an operating system to locally run a respective task server process, maintain a queue structure, and
• place task identifiers in the queue structure, the task identifiers identifying tasks to be performed in a distributed manner by the plurality of task server processes started on the plurality of task servers, each task being a specific execution of a dependency-related predefined activity of the workflow, progress in performing the workflow being made as the plurality of task server processes (i) claim task identifiers from the queue structure and (ii) perform the tasks identified by the claimed task identifiers, and
• as one of the tasks completes or in response to completing the one of the tasks, the workflow management server is to place a task identifier for another task dependent on the one of the tasks from a dependent queue in the queue structure to a ready queue in the queue structure.