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SPI and CPI are calculated based on current budget. If budget is revised but not approved, should SPI be calculated on original or revised budget?

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Question added by ZULFIQAR ALI , Planning/ Project Control Manager , King Abdullah University Of Science And Technology
Date Posted: 2017/06/01
RAYSON MENDOZA
by RAYSON MENDOZA , Sales Operations Coordinator; Executive Secretary; Document Controller; Training Facilitator , Unibeton Ready Mix

SPI and CPI is calculated based on 'budget at completion'. If budget is revised but not approved then SPI should still be calculated based on orginal budget.

Joey Balanquit
by Joey Balanquit , Planning Engineer , Mott MacDonald

SPI should only be calculated based on the original budget since planned value is based on approved baseline with approved budget, therefore, SPI cannot be calculated on revised budget unless it is approved. Othewise revised budget can be used only for internal progress performance monitoring.

ZULFIQAR ALI
by ZULFIQAR ALI , Project Controls Manager , Nakheel Dubai

If budget is not revised then SPI and CPI should be calculated on original budget.

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