Controls - Inspection
The Inspection symbol

tells you that the item is being checked to see if it is right
(correct, complete within standard, etc...). A Decision Point
typically follows an Inspection symbol, with at least one of the
alternatives shown as a dotted line. A dotted line represents a
Correction or Rejection routine. As with all the Graham Process
Symbols, control steps are identified for a SPECIFIC document /
item.
If multiple items/steps represent a
control, that's easily displayed as well. Simply draw a frame around
the objects... and link from the frame (or from any individual
symbol) to a Controls Matrix.