In the precedence diagramming method, which of the following is a logical relationship for the activities?

Question

Options

• AFinish-to-start
• BApplying leads and lags
• CActivity-on-node
• DDependency determination

• A
  80% (16)
• B
  5% (1)
• C
  10% (2)
• D
  5% (1)

Explanation

Finish-to-Start (FS) is one of the four logical relationships defined in the Precedence Diagramming Method - the others being Finish-to-Finish, Start-to-Start, and Start-to-Finish. These relationships describe how the start or finish of one activity depends on the start or finish of a predecessor.

Why the distractors are wrong:

• B (Applying leads and lags) is a technique used to modify dependency relationships (e.g., overlapping or delaying activities), not a relationship type itself.
• C (Activity-on-node) describes the structure of PDM - where nodes represent activities - not a logical relationship within it.
• D (Dependency determination) is the process of identifying what dependencies exist between activities, a tool used during sequence planning, not a relationship type.

Memory tip: Think "FS, FF, SS, SF" - the four PDM relationship types all combine two states (Finish/Start) in pairs. Any answer that describes a technique or method rather than a state-pair is a distractor.

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