Difference between Repeat and Repair

Repeat means the whole request instance is going to start as a new process. for example while executing the dso loads if it's failed during the loading then we have a option for repeat the whole steps again. Because this is happened in the middle of DSO loading and nothing is completed. Here the request to be considered as new request.

But Repair means whenever you want to start from the last step where it's got failed, and then you will have a option to do the repair. For example the same DSO loading the processing of loading may be completed but while activation the process may got fail. here we have 2 process for the same request. So in this case we can't go back and do the repeat the step again as it's done with half way already. So here we can avail the option of repair to proceed the process chain completion. Here the request will be on the same instance.