The concurrency test suite randomizes the schedule of tests that run in the execution mode (serial, parallel or composed). The subsequent workload schedule is then printed out, permitting a rerun of that schedule by patching runner.js. The proposed work would abstract the workload schedule such that it could be defined at a higher level, perhaps in fsm_all.js, fsm_all_composed.js, fsm_all_simultaneous.js, etc.