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EAC/CPI..per activities of a project of the whole project

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Alexandra Cossard Project Manager, PMP, Black Belt & ADKAR Practitioner| GSK Rixensart, Belgium
Dears,
Currently, I review some exercises, and I found 2 different ways for calculation of EAC/ CPI or ETC, when you have a list of activities as part of a whole package or project.
Sometimes, the calculations are made for each activity, sometimes, it is made globally. And the results are not the same...
Example:
Using the situation below, and assuming continued efficiency for work in progress and fixed price contract for task 4, calculate the EAC:

Task 1
Budgeted cost: 5000
PV: 5000
AC:6000
EV: 5000


Task 2
Budgeted cost: 6000
PV: 6000
AC:8000
EV: 4000

Task 3
Budgeted cost: 4000
PV: 2000
AC:1000
EV: 1000

Task 4:
Budgeted cost: 4000
PV: 0
AC:0
EV:0

Thanks for helping !
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Alexandra Cossard Project Manager, PMP, Black Belt & ADKAR Practitioner| GSK Rixensart, Belgium
Dec 23, 2016 10:10 AM
Replying to Rami Kaibni
...
You're Welcome Alexandra.

In both cases, the final answer should be the same so it doesn't matter which way to adopt especially that the question asked for the final EAC for the whole project.

What I usually do (Depending on what the questions asks for), I usually take each task alone and do the math then to check my answer, I calculate the same considering all tasks so if both answers are the same then my answer us most probably correct.

You always need to analyize what the question asks for in order to know which way to go.

Hope this helps.
But, in that case, considering what the question ask, you would prefer do it per activity?
Thanks a lot...And best wishes for 2017
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2 replies by Alexandra Cossard and Rami Kaibni
Dec 23, 2016 10:18 AM
Rami Kaibni
...
Yes I would still prefer to do it per activity and check my answer by calculating the thing as a whole.

Best wishes to you too in 2017 & always.
Dec 23, 2016 10:23 AM
Alexandra Cossard
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You're right,not only for 2017,but always...I am in a step by step philosophy...at that time, due to the stress of the exam...
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Rami Kaibni
Community Champion
Senior Projects Manager | Field & Marten Associates New Westminster, British Columbia, Canada
Dec 23, 2016 10:14 AM
Replying to Alexandra Cossard
...
But, in that case, considering what the question ask, you would prefer do it per activity?
Thanks a lot...And best wishes for 2017
Yes I would still prefer to do it per activity and check my answer by calculating the thing as a whole.

Best wishes to you too in 2017 & always.
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Stéphane Parent Self Employed / Semi-retired| Leader Maker Prince Edward Island, Canada
Dec 23, 2016 9:58 AM
Replying to Alexandra Cossard
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You're completely right Rami.
But I wonder how you know that you have to consider each task whether than the all project?
My proposal was, considering all the tasks:
- Total of EV = 14k
- Total of AC= 19k
-CPI for the 4 tasks: 0,7368
-BAC: 19k
-So EAC= 19/0,7368 = 25787, so approximately 26k.

But,what is the right way? In some other exercises, I have seen the way I describe here, ans seeing now, that EAC is calculated for each task, I don't know what is the best?
Thanks for your support !
I got different results than you did, Alexandra.

PV AC EV CV SV CPI SPI
Task 1 5,000 6,000 5,000 -1,000 - 0.83 1.00
Task 2 6,000 8,000 4,000 -2,000 2,000 0.50 0.67
Task 3 4,000 1,000 1,000 3,000 3,000 1.00 0.25
Task 4 4,000 - - 4,000 4,000 - -
Total 19,000 15,000 10,000 4,000 9,000 0.67 0.53
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Stéphane Parent Self Employed / Semi-retired| Leader Maker Prince Edward Island, Canada
Doh... the tabs don't line up well in the message. Let me see if I can do it as an HTML table.
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1 reply by Alexandra Cossard
Dec 23, 2016 10:24 AM
Alexandra Cossard
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The results I have shared are the answer provided by the trainer I had...so I assume they are right, and Rami found the same ones...
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Anupam India
I think this question is from FASTrack :)
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1 reply by Alexandra Cossard
Dec 23, 2016 10:25 AM
Alexandra Cossard
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No. I don't know what is Fast Track but it comes from the training I had...
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Alexandra Cossard Project Manager, PMP, Black Belt & ADKAR Practitioner| GSK Rixensart, Belgium
Dec 23, 2016 10:14 AM
Replying to Alexandra Cossard
...
But, in that case, considering what the question ask, you would prefer do it per activity?
Thanks a lot...And best wishes for 2017
You're right,not only for 2017,but always...I am in a step by step philosophy...at that time, due to the stress of the exam...
...
1 reply by Rami Kaibni
Dec 23, 2016 10:33 AM
Rami Kaibni
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You will do just fine I am sure, I wish you the best of luck in your exam.

Try to solve as many simulation exams as possible. FastTrack is Rita Mulcahy's simulation exam software and even though it is pricy but it is worth the investment as you will benefit a lot.
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Alexandra Cossard Project Manager, PMP, Black Belt & ADKAR Practitioner| GSK Rixensart, Belgium
Dec 23, 2016 10:21 AM
Replying to Stéphane Parent
...
Doh... the tabs don't line up well in the message. Let me see if I can do it as an HTML table.
The results I have shared are the answer provided by the trainer I had...so I assume they are right, and Rami found the same ones...
avatar
Alexandra Cossard Project Manager, PMP, Black Belt & ADKAR Practitioner| GSK Rixensart, Belgium
Dec 23, 2016 10:23 AM
Replying to Anupam
...
I think this question is from FASTrack :)
No. I don't know what is Fast Track but it comes from the training I had...
avatar
Rami Kaibni
Community Champion
Senior Projects Manager | Field & Marten Associates New Westminster, British Columbia, Canada
Dec 23, 2016 10:23 AM
Replying to Alexandra Cossard
...
You're right,not only for 2017,but always...I am in a step by step philosophy...at that time, due to the stress of the exam...
You will do just fine I am sure, I wish you the best of luck in your exam.

Try to solve as many simulation exams as possible. FastTrack is Rita Mulcahy's simulation exam software and even though it is pricy but it is worth the investment as you will benefit a lot.
...
1 reply by Alexandra Cossard
Dec 23, 2016 10:38 AM
Alexandra Cossard
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The instructor blamed me because I was preparing questions too much and I was making errors on what he considers as simple questions like, the tools and techniques, inputs and outputs, that you need to know by heart...
During the simulation, there were sentences coming directly from the PMBOK (including annexes)....what a pity such memorization....
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Stéphane Parent Self Employed / Semi-retired| Leader Maker Prince Edward Island, Canada
table
tr
th/th
thPV/th
thAC/th
thEV/th
thCV/th
thSV/th
thCPI/th
thSPI/th
/tr
tr
tdTask 1/td
td5,000/td
td6,000/td
td5,000/td
td-1,000/td
td-/td
td0.83/td
td1.00/td
/tr
tr
tdTask 2/td
td6,000/td
td8,000/td
td4,000/td
td-2,000/td
td2,000/td
td0.50/td
td0.67/td
/tr
tr
tdTask 3/td
td4,000/td
td1,000/td
td1,000/td
td3,000/td
td3,000/td
td1.00/td
td0.25/td
/tr
tr
tdTask 4/td
td4,000/td
td-/td
td-/td
td4,000/td
td4,000/td
td-/td
td-/td
/tr
tr
tdTotal/td
td19,000/td
td15,000/td
td10,000/td
td4,000/td
td9,000/td
td0.67/td
td0.53/td
/tr
/table
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