US Patent 9904585 Error handling in executing workflow state machines

A workflow interpreter service that interprets a workflow definition language for specifying a workflow definition. Further, the workflow definition language provides features for maintaining control over data flows for data that is passed from one state to another among states of a state machine for a workflow and features for handling errors that may occur within any given state of a workflow state machine. Such control over data flow in between states allows for a given workflow to be processed incrementally, and among multiple different computing resources. Further, the workflow definition language error handling features provide for robust error handling within the state machine framework corresponding to workflow.