If you have Windchill ProjectLink installed, change tasks can be divided into blocks of tasks that execute according to a defined sequence. This feature is enabled by setting the Change Management > Sequenced Plan Execution Order preference to Yes in the Preference Management utility.

When the Change Notice workflow reaches the “Synch on CA Complete” synchronization robot, it initially emits a CHANGE IMPLEMENTATION event. The Change Activity workflows associated with the change tasks listen for this event with the “Synch on Change Notice Implementation” synchronization robot and, when the event is received, determine if the Change Activity workflow should proceed.

In the example, there is a sequence plan and Change Task 1 is the first sequence in the plan. When the CHANGE IMPLEMENTATION event emits for the first time, the workflow associated with Change Task 1 proceeds. Change Task 2 and Change Task 3, which are later in the sequence, do not proceed. The “Synch on CA Complete” synchronization robot in the Change Notice workflow listens for when change tasks change state. When Change Task 1 resolves, the Change Notice workflow emits another CHANGE IMPLEMENTATION event. At this time, the Change Task 2 and Change Task 3 workflows proceed. When both change tasks resolve, the sequence plan is complete and the Change Notice workflow moves on to the “Audit Change Notice” activity.

If there is no sequence plan, the “Synch on CA Complete” synchronization robot emits a CHANGE IMPLEMENTATION event. At that time, all Change Activity workflows for existing change tasks proceed. If another change task is added while the change notice is in the Implementation state, the Change Activity workflow for the new change task automatically proceeds. When all change tasks complete, the Change Notice workflow moves on to the “Audit Change Notice” activity.