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SPI Help

5 replies [Last post]
Veronica Pal
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Hello,

I have a Change Order on my project ( 100 hrs). How are these hours captured in SPI? Or are Changes not factored in to SPI calculations?

 

Thanks!

V

Replies

Robert Bell
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Hi Veronica,

BCWS is budgeted cost of work scheduled, this is planned value. If you had a compensaton event/approved change, this would need to be reflected in your Key Dates and in the Prices. Effectively you would need to take a copy of your baseline, implement the changes there too, and this would become your performance measurement baseline.

Veronica Pal
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Hello, how would his affect my SPI if a projects planned value doesn’t change? My understanding is SPI= Earned Value/ Planned value.. where the “planned value” is set when you baseline? Thx
Robert Bell
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Hi Veronica,

I'm assuming these additional 100 hours are for future works and your client isn't arguing the work should have started already? In which case the additional labour would be a compensation event and, when approved, affect your ETC and remaining BCWS which would influence your future values of SPI but wouldn't affect any previously reported SPI values.

Zoltan Palffy
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Schedule Performance Index which measures how you are performing against the palnned schedule. It is a ratio of earned value against the planned value. An SPI of 1 means you are on schedule less than 1 means you are behind schedule and greater than 1 means that you are ahead of schedule. 

 

Mike Testro
User offline. Last seen 35 weeks 4 days ago. Offline
Joined: 14 Dec 2005
Posts: 4418

Hi Veronica - Welcome to planning planet.

What is SPI?

Best regards

Mike T.