Why can we use CPI(Cost Performance Index) to correctly forecast EAC(Estimate At Completion), but cannot use SPI(Schedule Performance Index) to correctly forecast SAC(schedule at completion)? Saving Changes...
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Wai Mun KooPMO Director| Intergraph PP&MSingapore, Singapore
Hi, can you be a little bit more specific on your question, or give an example? Saving Changes...
Imran ManirSenior Project ManagerBurton On Trent, United Kingdom
If by "Schedule at completion" you're referring to actual completion, then, yes, you use the formula:
Actual Completion (i.e. duration) = planned completion/SPI
Your planned completion is the point at which your BAC (i.e. budget at completion) ends and drops vertically onto the x axis, if you are viewing this in an line graph format. Saving Changes...
