Publishing Center uses a standard hierarchical structure, known as a content tree, to organize, and display, content. Publishing Center's content tree organizes and displays four levels of content. The four levels of content appear listed here, from most general to most specific:
The Publishing Center content tree organizes, and displays, content types at the content tree's most general level. Content types correspond to the content tree's main branches. Following content types, the content tree organizes content categories and content subcategories at levels of greater specificity. Content categories correspond to branches of content types. Content subcategories correspond to branches of content categories. Finally, the Publishing Center content tree organizes content items at a level of greatest specificity. Content items correspond to leaves of a content tree.
Consider Publishing Center's organization of content from another perspective -- that of one window displayed by the system's interface, as shown here:
Observe that the interface window displays, at the level of organization that is most general, a content type named Products. At the next level. a level of organization that is more specific, the window displays a content category named Mutual Funds. At the next level, a level of organization that is still more specific, the window displays a content subcategory named Stock Funds. Content items -- the level of organization that is most specific -- are not displayed. To view content items, you must click on any folder located left of any name of a subcategory. See the next subsection of this document for more information.
Use screens and windows and buttons and icons displayed by the application Publishing Center to navigate a content tree.
To navigate from a content tree's main branch, click on a name of a content type to display any names of content categories. To navigate a tree's secondary and tertiary branches, click on names of content categories, and content subcategories. To navigate to a content tree's leaves, click on any folder icons. When you navigate a content tree, you will expand or collapse the tree, as shown here:
Relationships between content branches and leaves in the Publishing Center content tree are similar to standard relationships in application and database systems known as parent and child relationships. Understanding parent and child relationships is important when working with access groups: see "Understanding access groups and privileges".
In the Publishing Center content tree, a content type that has categories is a parent to categories. Categories are children of a content type. Similarly, categories that have subcategories are parents to subcategories. Subcategories are children of a category from which they branch.
Multiple categories parented by a content type are siblings to one another. Also, multiple subcategories parented by a category are siblings to one another. Individual content items are children of their parent category, or subcategory, and siblings to one another, as shown here:
Content items can also be understood as subsets of a subtype. A subtype is a content type that shares a content type category structure, and some subset of its attributes. During application setup, your Publishing Center administrator defines any subtypes you use.
Every content type has a category named Unclassified. The category Unclassified references all content items that descend from a content type, but are not classified in any other category. Your site administrator can change the category name Unclassified to a name more suitable to your site. The document One-To-One Installation and System Administration Guide provides instructions for changing the name.
Content items in the category Unclassified have the same access privileges as content items in the parent content type from which the items descend. "Access privilege inheritance" explains how access privileges are passed from categories to content items.
Content items become Unclassified for the following reasons:
