TOPIC: WPD vs WPI

I am confused between WPD and wpi , planned vs actual schedule comparison is wpd or wpi? Please help me on this

John,
Are you referring to the inputs and outputs of the Control Schedule process?
Mark

OHi Mark,

Thanks for the reply. Yes, I read it. I got confused with a sample question in the communications section. Now what I understood is AC, PV, EV, all these come under WPD and SV SPI etc these are WPI.

Thanks
John