Finish-finish dependency in scheduling describes which relationship?

• A. The finish of one task must occur before the finish of the other
• B. The finish of one task must occur before the start of the other
• C. The start of one task must occur before the finish of the other
• D. The start of one task must occur before the start of the other

Answer: (A)

Finish-finish dependency means the end point of one task is linked to the end point of another: the finish of the first task must occur before the finish of the second. This creates an ordering where the second task cannot be completed before the first has finished, though the two tasks can run concurrently in many cases. For example, if you have “build foundation” and “erect structure,” the foundation must be completed before the final finish of the structure is allowed, even if the two tasks overlap in time. The constraint is about finishing times, not when work starts. The other finish-start or start-start relationships involve starts and starts or starts and finishes, so they describe different kinds of timing constraints.