1. A method comprising: receiving, by an interface, notifications associated with batch execution instances executed by multiple devices, the notifications identifying events occurring in an industrial process control and automation system; creating, by a processor, an initial namespace using one or more fields associated with a parent process being executed; receiving, by the interface, a start event notification in response to the parent process activating a child process; creating, by the processor, a unique namespace for the child process containing the initial namespace and one or more fields associated with the child process; storing, by the processor, records identifying the notifications in a unified activity hierarchy based on the unique namespace; and providing a unified batch view of the notifications for events of procedure execution instances that span the multiple devices.