IEACs vs. Ctr EAC Chart

The IEACs vs. Ctr EAC chart on the EAC Realism tab compares the contractor's estimate at completion to a set of independent statistical EACs. You can use this chart to assess your EAC realism by seeing if it falls in the range defined by the independent EACs and, if so, where it falls in that range.

Chart Format

By default, the IEACs vs. Ctr EAC chart is a combination bar chart and line chart, with a separate bar for each independent EAC for each period and a superimposed line chart representing the contractor's EAC for each period. Use the Fast Change icon () to switch to a pivot table that displays the actual values for the data points.

Chart Item	Description
Horizontal axis	The horizontal axis displays the range of periods.
Vertical axis	The vertical axis displays the range of EAC amounts.
Bars	Each bar represents the EAC amount for that independent EAC and period.
Lines	Each line represents the change in the contractor's EAC amount over the range of periods. Each data point on the line represents the contractor EAC amount for that period.

Chart Data

You can display the values for each period based either on cumulative or current data.

Data Item	Description
CPI EAC amount	EAC calculated based on cumulative CPI: ACWPcum + [(BAC – BCWPcum) / CPIcum]
Weighted Cost and Schedule amount	EAC calculated using the weighted cost and schedule formula: ACWPcum + [(BAC – BCWPcum) / ((Cost weight factor * CPI) + (Schedule weight factor * SPI))] The cost weight factor is defined in wInsight Analytics Administrator, and the schedule weight factor is calculated as 1 – Cost weight factor. For example, a commonly used set of weight factors are 0.8 for cost and 0.2 for schedule.
CPI * SPI	EAC calculated based on a composite of CPI and SPI: ACWPcum + [(BAC – BCWPcum) / (CPIcum * SPIcum)]
Contractor's EAC	Contractor's estimate at completion: Latest revised estimate (LRE)