[Herald_MJ]

Backups are all well and good, but really they aren't going to save you unless you are also doing frequent test restores. Only when you've acted out your worst-case scenario (with a set of virtual machines and a recent set of backups) and managed to restore the system without problem do you really know that your backups are adequate.

[steveklabnik]

... which is why the article mentions them directly after backups.

[Herald_MJ]

... no, the article mentions checking the backups are being made, that the processes you put in place are actually working. This says nothing about how useful and effective your backups actually are in a worst-case scenario. For this, you need to be doing test restores, which aren't mentioned in the article.