| 摘要 |
A system is provided for resetting a process from a first activity to a second activity, in which the second activity was previously performed. The system identifies activities that were previously performed after the second activity. Each identified activity (including the second activity) is then executed in a cancel mode of operation. The execution of the activities is performed sequentially from the first activity to the second activity. The system then executes the second activity in a run mode of operation. The cancel mode of operation cancels the changes that were implemented by a particular activity during a previous execution of the activity. The activities can maintain information regarding the last change implemented by the activity, which is used by the activity in the cancel mode of operation to cancel the last change implemented by the activity. The system may include a loop reset counter associated with the first activity and the second activity. The loop reset counter controls the number of loop resets that can occur from the first activity to the second activity.
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