The left project scope line is located between the

The correct answer is C. Higher order and basic functions . In FAST diagramming, the project scope is shown by vertical scope lines that define the portion of the function logic included in the value study. The left project scope line separates the broader reason for the study from the functions that are actually inside the study boundary.

The higher order function is placed outside the left scope line because it answers the “why” question for the basic function. It represents the larger objective or purpose that the basic function supports. FAST guidance states that highest-order functions appear outside the left scope line and to the left of the basic functions. ( )

The basic function is placed immediately to the right of the left scope line. It represents the primary purpose or mission of the subject under study. The FAST reference specifically states that basic functions immediately to the right of the left scope line represent the purpose or mission of the subject. ( )

Therefore, the left project scope line is located between the higher order function and the basic function .

References/topics: Function Analysis Phase; FAST Diagramming; Project Scope Line; Higher Order Function; Basic Function; How/Why Logic.