SPTP — Section 7, Figure 7-1

We suggest changing some multiplicities to avoid some problems. The association ExecutionEngine-SchedulingJob imposes a single ExecutionEngine to SchedulingJob. In distributed systems an schedulingjob will execute in mode than one execution engine (the modification of page 118 description of Scheduling Jobs is because of this). Some scheduling analysis techniques support alternative of responses (more than one response for each scheduling job), and more than one trigger event can generate the execution of the scheduling job.

see abopve