Figure 9

Example of Structured English

IF you don't care if item is delivered fast THEN
    Pick vendor with lowest quote for specified quantity
         of item; if tie, pick most recently used vendor
ELSE
    If you want to minimize cost THEN
        Pick vendor with lowest quote for specified
           quantity of item; if tie, pick vendor with best
               delivery time
    ELSE
        Pick vendor with best delivery time for item; if
           tie, pick most recently used vendor
    ENDIF
ENDIF