Whirlwind Bike Earned Value Question

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This topic contains 4 replies, has 3 voices, and was last updated by  Paul Naybour 4 months, 1 week ago.

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  • #15040

    Paul Naybour
    Moderator

    Whirlwind Bike Earned Value Question     
    Planned cost (BCWS) week 6 194,000Planned Duration 12periods
    Work PackageDurBAC%completeEVActual Cost
    Start-up and mobilisation1           5,000100%        5,000                 5,000
    Design frame2         60,00095%     57,000              57,000
    Design wheels1         10,000100%     10,000              12,000
    Design the ancillaries1         10,000100%     10,000              15,000
    Build the frame4         60,0000%               –   
    Build the wheels2         20,00070%     14,000              14,000
    Build the ancillaries1         20,00090%     18,000              17,000
    Integrate the bike2         40,0000%               –   
    Test the bike2         20,0000%               –   
    Launch the bike1           5,0000%               –   
    Project Management 12         48,00050%     24,000              22,000
    Total       298,000    138,000            142,000
          
    CPI = EV / AC0.97    
    SPI = EV / PC                0.71    
    SV= EV – PC–          56,000    
    CV = EV – AC–            4,000    
          
    Actual completion = planned duration / SPI              16.87    
          
    EAC = BAC/ CPI         306,638    
    #15042

    Adelle Hopper
    Participant

    Hi – I’m a bit stuck and wonder if anyone can help please.

    If the BAC is 298,000 and the CPI is 0.97, shouldn’t that give a EAC of 307,261? Not 306,638

    #15041

    Paul Naybour
    Moderator

    Adelle Well spotted I think its a rounding error on CPI. CPI is 0.971830985915493 so EAC is 306.6376811594203….excel……

    #44039

    epicday
    Participant

    Hi Paul,

    Fully understand how you arrived at your cals but the question then asks to draw the cost curves for EV and AC, How do you do this?

    Many thanks

    #44398

    Paul Naybour
    Moderator

    @epicday all you can do is plot the three points you have calculated and join with straght lines. So you have zero for all three at the start, AP and EV at week 6 and then the EAC and forcast actual completion.

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