Stimulus

User has (accidentally) started a report generation, but now wants to interrupt and clicks the abort or cancel button or select the cancel-function via keyboard.

Reaction

The system interrupts the report generation, saves the current generation state (in case user wants to continue later) and returns control to the user interface.

Metric

User gets back full keyboard or mouse control within at most 10 seconds. That means that all backend generation tasks or processes have acknowledged the abort/cancel signal.

Background

The generation of such reports is performed in several parallel threads or processes, eventually on different OS-processes, virtual machines or containers. Cancelling or aborting needs to handle such kind of distributed execution.