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ISEB-PM1 · Question #508

What is the status of the project whose data is shown in the following S-curve?

The correct answer is B. Over budget and behind schedule. Option B is correct because on the S-curve shown, the Actual Cost (AC) line sits above the Earned Value (EV) line - meaning more was spent than the value of work completed (Cost Performance Index < 1, over budget) - and the EV line sits below the Planned Value (PV) line…

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Question

What is the status of the project whose data is shown in the following S-curve?

Options

  • AUnder budget and ahead of schedule
  • BOver budget and behind schedule
  • COver budget and ahead of schedule
  • DUnder budget and behind schedule

How the community answered

(14 responses)
  • A
    7% (1)
  • B
    71% (10)
  • C
    14% (2)
  • D
    7% (1)

Explanation

Option B is correct because on the S-curve shown, the Actual Cost (AC) line sits above the Earned Value (EV) line - meaning more was spent than the value of work completed (Cost Performance Index < 1, over budget) - and the EV line sits below the Planned Value (PV) line - meaning less work was completed than planned at this point in time (Schedule Performance Index < 1, behind schedule).

Why the distractors are wrong:

  • A (under budget, ahead of schedule) is the exact opposite: it would require AC below EV and EV above PV.
  • C (over budget, ahead of schedule) gets the budget status right but reverses the schedule - ahead of schedule requires EV > PV, which the curve doesn't show.
  • D (under budget, behind schedule) gets the schedule status right but reverses the budget - under budget requires AC < EV, which the curve doesn't show.

Memory tip: Use the "EV sandwich" rule - EV is always the middle reference line. Compare AC to EV for budget (AC above EV = over budget), and compare EV to PV for schedule (EV below PV = behind schedule). If both are unfavorable, you're in the worst quadrant: over budget and behind schedule.

Topics

#S-curve#earned value management#schedule variance#cost variance

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