Category Hierarchy Definition

A category hierarchy is a system used to organize items into groups. It is often used in library and information science, and is also used in other fields such as businesses, manufacturing, and software engineering.

In a category hierarchy, each item is placed into a specific category. The categories can be organized in various ways, but they are typically organized into a tree structure, with the most general categories at the top and the more specific categories at the bottom.

For example, in a library, books might be organized into the following categories:

-Books

-Fiction

-Mystery

-Romance

-Science Fiction

-Non-fiction

-Biography

-History

-Self-help

The books in the library are then sorted according to their category. In this example, all of the mystery novels would be shelved together, all of the biographies would be shelved together, and so on.

Category hierarchies can be helpful when trying to find specific items, because they provide a way to group items that are similar. For example, if you were looking for a mystery novel set in Italy, you would know to look in the ‘Mystery’ section of the library.