Interactive package management via aptitude

[Eugene Lychauka <euxgeno@gmail.com>]

http://www.debian.org/releases/testing/amd64/release-notes/ch-whats-new.html#pkgmgmt

Here we can read:

"The preferred program for interactive package management from a
terminal is aptitude. For a non-interactive command line interface for
package management, it is recommended to use apt-get."

What is meant by interactive interface and non-interactive interface
here? I understand it as typing "aptitude install foo" is
non-interactive interface, and the text-user interface of aptitude
launched by typing "aptitude" is interactive interface. Am I right?
Some people assure me that not.

Thank you,

Eugene