This excerpt from a technical description of a web coding language appears on the site of the World Wide Web Consortium (W3C).

Because the readers are coding experts, the writers use highly technical language and refer to advanced topics. Note, however, that the nontechnical information is written simply and directly.

Notice that the graphic is based on a simple flowchart and basic icons. Why? Because the readers are interested only in understanding the logic of the process illustrated in the flowchart.

Source: World Wide Web Consortium, 2013: http://www.w3.org/standards/xml/transformation.html. Reprinted by permission of WC3.