Hi
I am facing problem in one situation in a project. activities are so huge in my project i cant mention here therefore i am using a dummy project having two activities to illustrate my problem.
Activity Name Original duration(Planned) Planned units Actual Durations Actual Units
Start 05days 80hours 06 days 100hours
Finish 05 days 80 hours 07 days 100hours
For first activity is 1 day late it completes in 6 days and in 100hours. When i have put my actual and view my result in tracking at end of first activity it shows
SPI = 0.85 (behind schedule) CPI = 0.8, after end of first activity with second activity actuals not put in yet
thats ok fine
but when i put my actuals of 2nd activity it completes in 7 days & 100hours and at end of second activity i get following values
SPI = 1.00 , CPI = 0.82, after end of second activity
Now my boss says go back to the end of first activity and tell me wht was SPI and CPI , I took my Data date to after end of first activity and got following results
SPI = 1.61 CPI = 0.82, after end of first activity with second activity actuals on
Now my question is that why above values (SPI = 1.61 , CPI = 0.82) are not matching with the first values (SPI = 0.85 , CPI = 0.8).
I am using percentage complete type = duration
Regards
Planning Guy
Because when calculating Earned Value and Actual Cost, P6 looks at all the actuals, including any actuals you may have included which are later than the Data Date.
Hint: If you ever have any dates marked as "Actual" which are later than the Data Date, your schedule is wrong and will give you wrong results.