At the top of the illustration is a rectangle that includes the text “CDB resource plan in root.”

Below the “CDB resource plan in root” rectangle are three other rectangles arranged horizontally. Three arrows point from the “CDB resource plan in root” rectangle to the three other rectangles beneath it.

The following text appears inside each of the three rectangles below the “CDB resource plan in root” rectangle:

Below each of these three “Directive” rectangles are three other rectangles arranged horizontally. An arrow points from each “Directive” rectangle to the rectangle directly below it.

The following text appears inside each of the three rectangles below the “Directive” rectangles: