Estimate At Completion & Estimate To Complete

The Estimate At Completion (EAC) and the Estimate To Complete (ETC), are functions of time. EAC can be defined as the answer to the question: What is the project likely to cost?. The estimated cost to complete the project, named Estimate To Complete (ETC), is the diference between EAC and AC. Mathematically, the ranges of EAC and ETC are economic value ($) and the domains of EAC and ETC are time. The minimun value of EAC is zero but normally close to BAC. The minimun value of ETC is zero. There is no maximun for EAC neither for ETC. The EAC can be obtained by adding the ETC to the AC (Actual Cost).

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