CIW Exam 1D0-621 Topic 10 Question 20 Discussion

You are consulting on the development of a complex Web site for an airline maintenance company. It will contain a large library of technical information. Maintenance technicians will use the site to understand the requirements of their jobs, the physical structure of the airplanes, and other important information. They will need to refer to different areas of the site frequently. What kind of positional awareness tool should be included to help navigation through the site?