Performance-Based Earned Value

DoD Assessment of EVMS Implementation in response to Weapon Systems Acquisition Reform Act of 2009

​WSARA required DoD to submit a report to Congress on DoD implementation. In Sept. 2009, DoD submitted the DoD Defense Support Team EVM Report to Congress: DoD EVM Performance, Oversight, and Governance (DST). []
DST excerpts follow:

"Utility of EVM has declined to a level where it does not serve its intended purpose."

Apply methodical discipline and objective measurement and analysis to cost, schedule and technical processes.

Early mitigation of cost, schedule, and technical problems improves the probability of achieving program budget and completion goals.

Significant Deficiency: Use of management reserve to alter internal and subcontract performance levels and overruns

Contractors may circumvent proper EVM practices to keep EVM metrics favorable and problems hidden.

Engineering community should establish technical performance measures (TPM) that enable objective confirmation that tasks are complete
EV process is reliable and accurate only if
  TPMs are identified and associated with completion of appropriate work packages
Quality of work must be verified
  Criteria must be defined clearly and unambiguously

Many instances of inappropriate changes·
     Arbitrarily changing past variances·
     Moving budgets to mask overruns·
Making changes that were not properly authorized
"End result: Many defense contractors cannot accurately predict outcomes that affect program costs or deliveries"
Programs could report 100 percent of earned value..even though behind schedule validating requirements, completing the preliminary design, meeting weight targets or delivering software releases that meet the requirements.

Program Manager should ensure that the EVM process measures the quality and technical maturity of technical work products instead of just the quantity of work performed. 

Systems Engineering (SE): EV process is reliable and accurate only if:
 - Augmented with a rigorous SE process
- SE products are costed and included in EVM tracking