Earned Value Management (EVM) integrates scope, time, and cost.
PV = Planned Value = Budgeted Cost of Work Scheduled (BCWS)
EV = Earned Value = Budgeted Cost of Work Performed (BCWP)
AC = Actual Cost = Actual Cost of Work Performed (ACWP)
BAC = Budget at Completion
EAC = Estimate at Completion
ETC = Estimate to Complete
Example:
Performance of Day 1 :
Data : PV = $1000, EV = $750, AC = $900, BAC = $4000
1. Schedule Variance (SV) = EV – PV
SV = $750 – $1000 = -$250
2. Schedule Performance Index (SPI) = EV / PV
SPI = $750 / $1000 = 0.75
3. Cost Variance (CV) = EV – AC
CV = $750 – $900 = -$150
4. Cost Performance Index (CPI) = EV / AC
CPI = $750 / $900 = 0.83 [Interpretation: For every $1, 17 Cents are being wasted]
Value | Schedule Variance | Cost Variance |
> 0 | Ahead of Schedule | Under Budget |
= 0 | On time | Within Budget |
< 0 | Behind Schedule | Over Budget |
Value | Schedule Performance Index | Cost Performance Index |
> 1 | Ahead of Schedule | Under Budget |
= 1 | On time | Within Budget |
< 1 | Behind Schedule | Over Budget |
Forecasting – As on date measurement. Its advantage is it gives alert.
1. For Entire Project
Estimate At Completion (EAC) = BAC / CPI
EAC = $4000 / 0.83 = $4819
2.For Remaining Project
Estimate To Complete (ETC) = EAC – AC
ETC = $4819 – $900 = $3919
To-Complete Performance Index (TCPI) – It is the new target of cost performance setup by the management.
TCPI = (Work Remaining in Money Terms) / (Fund Remaining) = (BAC – EV) / (BAC – AC)
TCPI = ($4000 – $750) / ($4000 – $900) = 1.05
TCPI Value:
> 1 : Performance need to be increased to stay within budget
< 1 : Performance can decrease to stay within budget
TCPI < 1 is preferred situation.
Great notes for EVM. Pls keep sharing
Excellent info