What are the differences between Archiving and Suspension of an account?

Archiving:
A site is archived when it is inactive (make reference to Terms of Service, articles 10.2, 10.3).

Suspension:
An account is suspended when it doesn't respect the community regulation.
When an account is suspended an e-mail is sent to the associated address, to notice the webmaster about the suspension and its motivation. While the account is suspended nobody can access it. After some time it will be considered inactive and it will be archived. There is no way to recover files of a suspended account before its archiving.