As with PERT which was first adopted by the US Navy, the Earned Value Project Management was first adopted by the US Air Force in the early 1960s.
Earned Value of a Project, also called BCWP (Budgeted Cost of Work Performed) is a measure of the Project’s performance. It is basically a relationship between the percent of the project actually completed and the budget. It links the Project time and cost and is used to measure the health and status of the Project. The foundation of EV management is the measurement and tracking of project work. At the commencement of the Project, the Budget at Completion (BAC) or Planned Value (PV) is assessed. These figures are the cost of the project and the value that the project will deliver on its completion. The Earned Value is calculated by the formula below
Planned Value = Actual Percent Completed x Budget for the Task
The Planned Value or BCWS (Budgeted Cost of Work Scheduled) is the amount of tasks that should have been completed and is calculated by the formula below
Planned Value = Planned Percent Completed x Budget for the Task
The Earned Value is an important metric to the Project Manager as it gives the value that has so far been earned on the Project as compared to the amount that has been spent. It thus is a good measure to calculate the ROI and the efficiency of the Project.
Example
AMCO Project Management Co has undertaken a Project of $100,000. As of date, 20% of the Task has actually been completed as against the planned percent of 30%. The EV and PV for this Project are calculated below.
EV = Actual Percent complete x The Budget for the Task.
EV = 20% of $100,000 = $20,000
PV = 30% of $100,000 = $30,000
Comparing the EV with the PV will give a good indication of the progress of the Project.
When not to use Earned Value
Some Project Managers do not use Earned Value for the wrong reasons. Some lack the will to do it and think of it to be a complex process, and are happy to monitor their project through the present system. In most cases, the Project Managers are not aware of the actual cost of their project.
One of the important reasons to use or not use the Earned Value system will be the maturity of the Project Management system. This would involve the use of at the very minimum, basic project management disciplines such as a reliable enterprise-wide DBMS, an estimation process, Work Breakdown Structures (WBS), a Contract Management System, Scheduling System, reporting systems for direct and indirect cost, an EAC process, a risk management system, a change management system and a work authorization process. Earned Value project management should not be used in an immature project management system that lacks the basic project management disciplines required for its success.
It entails a necessity for the project manager to be able to define the project work in detail. At the very minimum, it requires a detailed WBS system and a good understanding of the work authorization process.
References
https://www.projectmanagement.com/contentPages/wiki.cfm?ID=711501&thisPageURL=/wikis/711501/What-Is-The-Earned-Value--EV--Of-A-Project#_=_
https://sitemate.com/us/resources/articles/finance/earned-value-calculation/
https://www.ipma-usa.org/articles/NotUsingEV.pdf © 2014, by Jim Baber. Published at www.asapm.org, April, 2014