Designing the Procedure Dialog › Design Batch Dialogs › Design for Restart

Design for Restart

One consideration unique to batch procedures is the need to restart them. A procedure step is restartable when, if it abnormally terminates midway through its execution, it can be restarted from the point it terminated.

Designing for restart has two aspects:

• Establishing checkpoints, which is analogous to leaving a trail of bread crumbs in one's path through the enchanted forest
• Restarting from the last checkpoint, which is something like following the trail of bread crumbs back into the forest after being mysteriously transported back to your initial starting point