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Because of the fact that there will not be many business engineers that actually want to know everything-about-everything in a single visual, visuals are created for different areas of expertise.
Image maps
The visuals are image-maps. This means that they consist of a lot of hyperlinks. Usually, an element (represented by a rectangle) is linked to a page in the community documentation that discusses the element at helpfile-level. In some cases, a few elements combined link to one specific subject.
Overview
Content Tools