Contingency Planning Several different processes and back up plans function as part of the backup and recovery plan.- Program files, as well as data files, should be backed up regularly.- Copies of all transaction data are stored as a transaction log as they are entered into the system.- Backups should be stored at a secure, remote location, so that in the event data is destroyed due to a physical disaster, it can be reconstructed. -Grandparent-parent-child processing is used because of the risk of losing data before, during or after processing work. Data files from previous periods are retained and if a file is damaged during updating, the previous data files can be used to reconstruct a new current file. Like backup files, these files should also be stored off-premises.-Computers should be on Uninterruptible Power Supplies (UPS) to provide some protection in the event of a power failure. -Fault-Tolerant Systems are systems designed to tolerate faults or errors. They often utilize redundancy in hardware design, so that if one system fails, another one will take over. Computer networks can be made
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