SPI--?

Submitted by Vishwanath on Thu, 07/18/2013 - 04:32

 1)     In your project you had planned to have Tasks A, B & C completed already, however tasks A, B, C, and D are 100%, 80%, 0%, and 0% complete respectively. The value of each day of work is $100. Using the 0-100 Rule and the information given below, calculate the SPI: 

Tasks A, B, C, and D have duration of 3, 5, 4, and 3 days respectively. 


1.    

0.25


2.    

1


3.    

0.50


4.    

0.75

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pmpnewster

Thu, 07/18/2013 - 05:57

 

 

Planned value of work, PV = 3*100 (for A) + 5*100 (for B)  + 4*100 (for C) = $ 1200

Earned value of work done, EV = 3*100 (for A) + 0 (for B) + 0 (for C) = $ 300

SPI = EV / PV = 300/1200 = 0.25

= > Choice 1.

 

Regards.

 

bkthakkar

Thu, 07/18/2013 - 06:40

Support the above answer


 

narinder

Thu, 07/18/2013 - 06:54

Planned value should be :

3*100 (for A) + 5*100 (for B)  + 4*100 (for C) + 3*100(For D) = $ 1500

and EV = 300$

SPI should be 300/1500= .2

but there is no option for .2

Regards

 

pmpnewster

Thu, 07/18/2013 - 07:01

 

 

Nothing is mentioned in the question about task D. We cannot assume that D should be completed at so and so time. Hence D cannot be considered in computing PV.

Thus, PV is $ 1200.

 

Regards.

 

vmetha

Thu, 07/18/2013 - 06:05

only activity A is complete per 0-100% rule..

http://pmzilla.com/confusing-questions-and-answers

cnppmp1's picture

cnppmp1

Thu, 07/18/2013 - 11:59

A,B,C should be completed as per plan, so PV 300+500+400=1200 ($100/per day)
 

EV=300 (considering 0-100% rule, you can consider only A completed and it has dollar value of $300 (3days *$100)

Hence , SPI=EV/PV= 300/1200

0.25

 

Regards

CN Patil

jvleminc's picture

jvleminc

Fri, 07/19/2013 - 17:16

I agree with the above. We are at the end of day 3, hence PV=300+500+400 (first three tasks complete); EV=300 (only A completed per the 0-100 rule).

SPI=EV/PV=300/1200=0.25.