In eZ publish, content is structured using nodes and locations. Nodes are the tree structure that we normally would refer to as the site map. As there are times when we want to have a piece of content in more than one place in the site, an object can have multiple locations.
The content structure in eZ publish is created by nodes. Each node represents a part of the site. A publish object is then associated with a node to be a part of the content structure.
E.g. Node ID 5 is associated with object ID 47.
This approach allows an object to be moved from one node to another without upsetting the site structure.
Objects can be associated with more than one node so that a particular object can appear in more than once place within the content structure. Each location is a combination of a node and an object.
For example, a particular object (in this case, a news item) can be found in the news section (presented by node ID 54) and in the press release...