You may want the title of a page to appear different from the page's Display Name when the page is being viewed. This is done by editing the Title field. For example, the Display Name of the Logging In page is “Logging in to Cascade,” and that's how it appears in the menu. But when the page is viewed, its title appears as “Logging In to the CMS.”
Use Caution
Changing a page's Display Name instead of the Title field will directly affect its alias and URL (web address). To avoid breaking links, read this before changing a page's Display Name.Use the Title field to expand the page's display name when the page is being viewed. This appears directly under the Display Name field. It's optional, so you can just leave it blank and the Display Name will do its job.
Another example of this is on faculty pages, which are often ordered by last name so the menu can be scanned quickly:
Faculty and Staff
Doe, John
Jones, Jane
Smith, Joe
The actual title of Jane Jones' page layout is “Jones, Jane.” But when her page is directly viewed, the Title field takes over and the page's name appears as “Dr. Jane Jones, PhD.”