“Repository, distro, component, section, area”, WTF?

“Repository, distro, component, section, area”, WTF?
	Reprepro setup

Consider this snippet from /etc/apt/sources.list:

  deb http://security.ubuntu.com/ubuntu lucid-security  main restricted

	`http://security.ubuntu.com/ubuntu` Is the name (and URL) of the `repository`
	`lucid-security` Is the `codename` of the `distro` in reprepro parlance (according to reprepro manual). The Debian releases thus are `distros` in repository context.
	`main` and `restricted` are `components` according to reprepro. But the Debian Policy Manual calls them `archive area`s, but acknowledges the use of the term `component` in internal documentation.

user#host:~$ apt-cache show reprepro

Now also consider this example .deb control file:

Source: lwp-utils
Section: misc
Priority: extra
Maintainer: Jurjen Bokma <j.bokma@rug.nl>
Build-Depends: debhelper (>= 7)
Standards-Version: 3.8.0

Package: lwp-utils
Architecture: all
Depends: ${shlibs:Depends}, ${misc:Depends}, ncpfs, ldap-utils
Description: various utilities particular to the RuG Linux
<snip long description>

Note that neither distro nor component are specified, but architecture is. Also note that in the below unzipped changelog.gz snippet that the distro is specified, although not directly by its codename but by its suite alias.

-- Joey Hess <joeyh@debian.org>  Thu,  1 Jan 2004 21:49:21 -0500

debconf (1.4.2) unstable; urgency=low

 * Deal better with hostname -f during debootstrap.

-- Joey Hess <joeyh@debian.org>  Tue, 30 Dec 2003 15:36:48 -0500

unstable is what the Reprepro manual calls a suite, and alias for a codename