|This chapter covers|
In content-centric applications, users typically navigate content through categories or menus authored by the site editors. Each category can have a number of nested subcategories, allowing the user to drill down the subcategory tree and find content of interest. From a user-experience point of view, such navigation can be tedious. A user might need to navigate across multiple subtopics before finding the right item. This approach of manually categorizing items can be expensive and difficult to maintain over the long run ...