Analysis of the Earned Value Management and Earned Schedule Techniques in Complex Hydroelectric Power Production Projects: Cost and Time Forecast

Table 7

Accuracy probability rates in cost forecasts (EVM) and duration forecasts (ES) for the Mazar Dudas project.

Analysis period	Earned Value (EV)	Cost Accuracy Probability (%)	Duration Accuracy Probability (%)
months	millionsProb. 95%	range 2%  ± 0.6 million	range 5%  ± 0.7 months
5	10.85	71.00	26.70
10	24.75	94.20	28.10
15	40.51	99.80	28.80
20	52.19	100.00	30.40
25	56.41	100.00	42.00
27	56.50	100.00	44.10
Completion	56.55	100.00	100.00