Intego Backup Assistant User Manual page 14

Again, scheduling decisions will depend on the amount of space available on your destination
device. If you have plenty of space compared to the total size of your source files, and are able to
perform backups conveniently, there's no reason not to do them every day. Consider how long
you'll want to keep archives of your backups. A financial-services company might be required by
law to retain computer data for several years: such a company would want to ensure that it always
has a definitive copy of each file stored away in case auditors come around. However, it probably
won't need to access those old files frequently, or at all: therefore, it would probably store them in a
compressed format (to save space), at an offsite location.
On the other hand, home users might want to make backups only to ensure that they can recover the
most-recent versions of their files, not caring about older versions. For them, the best solution might
be to back up their Macs to external drives, automatically discarding old versions as they go.
Finally, it's a good idea to create a bootable backup of your Mac OS X startup volume on an
external hard drive in case you suffer major disk problems or cannot start up your Mac for other
reasons. Then, if problems occur, you can restart your Mac from this disk and get to work
immediately.
In any case, you should develop a backup strategy that corresponds to the way you work—and
perform regular backups.
Intego Backup Assistant and Intego Backup Manager Pro User's Manual Page 14