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SPI with wrong results on Project Professional RRS feed

  • Question

  • Hi, I´m Working with Project Professional and using the SPI column as a Project
    indicator. However I identified that the SPI is calculating a wrong SPI, since
    the SPI = BCWP / BCWS and the BCWP is not getting higher than the
    BCWP, even when the project activities are advanced (for example: when the
    "% Complete" is 35% and the "%planned" is 20%", the
    SPI should be 1,75, such as the BCWP must be higher than the BCWS) - the SPI is
    expected to go to a number higher than 1 when the activity is advanced
    than the plan, according to PMBOK rules and by the Microsoft
    site explanation
    (I can send the link if you want).

    Another situation that promotes distortion on the SPI results, is that when the
    activity have the "% Complete" as 20% and the "%planned" is
    0% (for a activities that was supposed to start later), the activity is in
    advance and the SPI should be 1,2, according to PMBOK rules and
    by the Microsoft site explanation (I can send the link if you want).
    However, the SPI gives a SPI=0 for the advanced activity.

    Therefore, the SPI results get distorted and shows a lower SPI than it should be, since it
    considers it´s delay (showing SPIs lower than 1) but it doesn´t show the SPI
    higher than 1 when the project is advanced than the plan.

    It seems to be happening because the BCWP is not getting higher than the
    BCWP, even when the project activities are advanced: 1) BCWP and BCWS
    are equal when the Project is on schedule - correct / 2) BCWP is
    lower than BCWP when the Project is with delay - correct / 3)
    BCWP is never higher than BCWP when the Project
    is advanced - not good, since the SPI = BCWP / BCWS and in
    this case it will never generate a SPI higher than 1.
     (BCWP: budgeted
    cost of work performed
    / BCWS: budgeted cost of work scheduled / SPI: schedule
    performance index).

    Is there a way to correct it or solve it?

    Best regards.

    Diana


    Friday, September 29, 2017 3:35 PM