A site map is something web developers will be familiar with, and can also be referred to as the site structure. It's a representation of how the public view of the site will be structured. It captures the way the navigation will be defined.
The following site map is of a straightforward content-focused website. It has the main sections linked from the homepage, and pages identified beneath each section. The block to the right of the homepage shows the pages that appear on the footer of every page.
This where we derive the node tree in eZ publish. It provides the structure of content within the administration area.
