Categories
Categories enable you to organize application content by any characteristic or business requirement, such as billing or warranty information, so that you can manage and present related content consistently for your users. Categories differ from Content Types; Content Types organize your content by article type, such as FAQ or News.
You can use categories within Knowledge Advanced to assign categories within Content Type definitions. After you assign a category, article creators can associate articles with one or more categories that you have enabled for the Content Type.