What A subsite is a collection of pages with a web site that can share a common navigation system, which may be different in style from the Web site as a whole. A local navigation system helps users with accessing a subsite and complements the site’s global navigation. are ad hoc links? What do they add to a navigational system? Are there any special considerations you should keep in mind when using them?

What will be an ideal response?

Ad hoc links express relationships among content items that cannot be accommodated by a hierarchical system. They usually appear as embedded links on a page. They add flexibility that is lacking in a pure hierarchical system. When adding ad hoc links try positioning them in a bulleted list or place them at the start or the close of a paragraph so that they stand out enough that users can see them while scanning the page.