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Calculating Estimate at Completion (EAC) in EVM has 3 cases. How do I know which case to apply?

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Saf Sied Saf Sied Va, United States
We know that Estimate at Completion (EAC) can be calculated in following three cases depending on the situation.

Case I: You assume that the project will continue to perform as it was performing in the past.
Cast II: You have, until now, deviated from your budget estimate; however, from now onwards you believe you can complete the remaining work as planned.
Case III: You have deviated from the budget, are behind schedule, and the client is pressuring you to complete the project on time.

Question: In the following example, how do I determine which of the above 3 cases should be applied here?

You are working on a project with a BAC of 200,000 USD. You have already spent 50,000 USD and the value of the completed work is 40,000 USD, although according to the schedule you
should have earned 60,000 USD. Determine the estimate at completion.
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Kiron Bondale Retired | Mentor| Retired Welland, Ontario, Canada
Insufficient info to pick a forecasting choice. As such, you could choose to go with the BAC/CPI choice but if they also give you the AC+(BAC-EV) choice as an option then you wouldn't know which to go with.

This wont happen on the real exam - they would provide you some context to pick the right option.
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1 reply by Saf Sied
Jan 31, 2020 11:12 AM
Saf Sied
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Kiron,
I think, generally you would use BAC/CPI if context is not clear. But since the question provides additional info such as EV, PV, and AC, I am thinking in this case we may want to calculate SPI and CPI to find out if the project is both behind schedule and over budget. And if so, we would want to use Case 3. Any thoughts/suggestions?
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Abolfazl Yousefi Darestani Manager, Quality and Continuous Improvement| Hörmann-TNR Industrial Doors Newmarket, Ontario, Canada
It depends on the case as Kiron mentioned.
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Saf Sied Saf Sied Va, United States
Jan 29, 2020 10:19 PM
Replying to Kiron Bondale
...
Insufficient info to pick a forecasting choice. As such, you could choose to go with the BAC/CPI choice but if they also give you the AC+(BAC-EV) choice as an option then you wouldn't know which to go with.

This wont happen on the real exam - they would provide you some context to pick the right option.
Kiron,
I think, generally you would use BAC/CPI if context is not clear. But since the question provides additional info such as EV, PV, and AC, I am thinking in this case we may want to calculate SPI and CPI to find out if the project is both behind schedule and over budget. And if so, we would want to use Case 3. Any thoughts/suggestions?

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