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  • Blog
  • 25 Feb 2020

Earned Value Project Management Simplified

Earned Value Project Management Simplified

I could meet a lot of project managers from different geographies, working on different types of projects. From diverse domains. Both highly experienced as well as inexperienced. While I taught them professional project management using earned value management, I could also learn a lot from them. Thanks to my project management training career, spanning almost a decade.

Most of them had one trait in common. They started their workday by checking their official emails. These emails decided their work day. Even though their titles were ‘Project Managers’, they were doing just coordination work. This behavior confirms the biggest huddle project managers face world over and that is non availability project progress information on time. Hence they are always on a reactive, fire fighting mode, which is very difficult. .

There were exceptions as well. I still remember that well composed young professional project manager, who started his day by analyzing the ‘S’ curve of his project. And his daily reporting revolved around the variances only, which hardly took ten minutes. All he had to report was the reason for variance and how is he going to correct it. There was no running around to know the status of the project. It was given to him at the press of a button, so that he could focus on project management decision making by focusing on the exceptions and trends. That is the benefit of earned value project management. Project managers become more proactive than reactive. This in turn protects the project from slippages and cost overruns.

Key benefits of Earned Value Management

  1. It is simple – Just by monitoring two indexes (schedule performance index and the cost performance index), project stakeholders will be able to gauge the health of the project without spending much time.
  2. Right information at the right time – With the help of automated earned value management system, project managers will get almost real time project status information.
  3. Management by exception – Earned value management system helps the project managers to focus on the exceptions, thus saving valuable time.
  4. Forecasting ability – With the forecasting ability provided by earned value management system, project managers can be more proactive. This results in more preventive actions.
  5. Scalable – Earned value management can be implemented across locations. It can be implemented at a work package, sub-project, project, program and even portfolio levels.

Understanding the Basic building blocks of EVM

Before explaining the steps involved to implement EVM based project management, let me explain how EVM works quickly. Earned value management revolves around four basic measurements like;

  • As per the project plan, how much work are we supposed to complete till now. This is known as Planned Value (PV).. This is also known as Budgeted Cost Of Work Scheduled (BCWS) till now.
  • How much work did we actually complete till now?. This is known as Earned Value (EV). This is also known as Budgeted Cost Of Work Performed (BCWP)
  • For the completed work, how much did we actually spend?. This known as Actual Cost (AC). This is also known as Actual Cost Of Work Performed (ACWP)

Calculating the Variances

Once we have these basic status data, it is very easy to calculate the Schedule Variance (SV), Cost Variance (CV), Schedule Performance Index (SPI) and the Cost Performance Index (CPI).

  • Schedule Variance (SV) = Earned Value (EV) – Planned Value (PV)
  • Schedule Performance Index (SPI) = EV/PV
  • Cost Variance (CV) = EV – AC
  • Cost Performance Index (CPI) = EV/AC

Interpreting the Variances

  • A Schedule Variance of zero (SV=0) indicates that work is progressing as per plan. In this case, both the planned value and earned value are equal. Indicates that work is progressing as per plan.
  • An SV > 0 indicates that the earned value is lesser than the planned value. There is a slippage of work from the planned quantity of work.
  • If SV < 0, that indicates a negative schedule variance. This is because the Earned Value (EV) is more than the Planned Value (PV).
  • If the Schedule Performance Index (SPI) = 1, that also indicates that the work is progressing as per plan.
  • Cost Variance (CV=0) indicates that, the completed work consumed just the budget allocated to it.
  • If the Cost Variance is more than 0 (CV>0) indicates that the actual cost incurred to complete the work exceeded the budgeted value of that work.
  • A negative Cost Variance happens when the work gets completed without consuming the budget allocated against it.

Broadly speaking, If the project manager can maintain the schedule and cost variances around zero throughout the project the project will get over on time within budget. That is is the crux of Earned Value Project Management. This is true with Schedule Performance Index (SPI) and the Cost Performance Index (CPI) as well. As long as both the CPI and SPI can be maintained around 1, the project is safe. That makes Earned Value Project Management simple yet powerful.

Forecasting

Earned Value Project Management simplifies project management for project managers. Monitoring project health boils down to tracking the Schedule Performance Index (SPI) and the Cost Performance Index (CPI). It is more like performing health checks frequently, so that action can be taken if there is any health issue. Though this is better than living in total oblivion, still the project managers will be operating in a reactive mode. They will still wait for the schedule performance index or the cost performance index to slip in order to take action. With the ability to forecast the target cost and the target schedule project managers can act proactively. They will be able to tackle schedule and cost related issues before they occur. Let me explain this further.

We need to understand one more term ‘Budget at Completion’ (BAC) before dwelling into forecasting. Budget at completion (BAC) is the total budgeted cost of the project from the start of the project till the end of the project. If all the conditions remain same, how much will it cost us, when the project gets completed?. That is the Estimate at Completion (EAC).

Estimate at Completion (EAC) = AC + (BAC – EV) / CPI

Let us work out one simple exercise

Earned Value Project Management Diagram #1

The diagram above depicts the status of a project as on a specific review date.

The total budget of the project is 100000. As per the plan, the project team was supposed to complete work worth 60,000 (Planned value) . Actually they completed work worth 50,000 only (Earned Value). For completing the work worth 50,000, they spent 65,000 (Actual Cost).

Schedule variance (SV) = (EV – PV) = 50,000 – 60,000 = -10,000

Schedule Performance Index (SPI) = EV/PV = 50,000 / 60,000 = 0.83

Cost variance (CV) = EV-AC = 50,000 – 65,000 = – 15,000

Cost Performance Index (CPI) = EV/AC = 50,000 / 65,000 = 0.76

Both the Schedule Performance Index (SPI) and the Cost Performance Index (CPI) are 0.83 and 0.76 respectively. The work has not progressed as planned and at the same time the completed portion of the work took more than the budgeted value. There is both schedule slippage and cost overrun as on the review date.

While this data is better than having no data about the project’s status, it would have better if the team was alerted in advance about this impending situation.

Forecasting

The total budget of the project or the Budget At Completion (BAC) = 100000

Estimate At Completion (EAC) = AC + (BAC – EV) / SPI = 65,000 + (100000 – 50,000) / 0.76 = 130,789.47

If all the conditions remain the same, this project will cost 130,789 instead of 100,000 when it gets completed.

Corrective action

How can we complete the project within 100000?

To Complete Performance Index (TCPI) = (Remaining Work / Remaining Funds)

Remaining work = BAC – EV = 100,000 – 50,000 = 50,000

Remaining funds = BAC – AC = 100,000 – 65,000 = 35,000

TCPI = Remaining work / Remaining funds = 50,000 / 35,000 = 1.42

For the remaining part of the project, if the project team can maintain the Cost Performance Index (CPI) at 1.42, still the project can be completed within the initial budget of 100,000.

How do we achieve this target CPI of 1.42 for the remaining work?

How can we complete the balance work without consuming the budget allocated to the tune of 1.42?. Cost Performance Index (CPI) = EV/AC. The team has to find out ways and means maintain the Actual Cost well below Budgeted Cost of Work to be completed. In other words, the team should be able to complete work worth 1.42 dollars for every dollar spent from now on, till the end of the project. Brainstorming with the relevant engineering and project management disciplines is the solution and the strategies may include;

  • Sourcing cheaper material
  • Cheaper labour
  • Controlling waste / rework
  • Automation
  • Request for additional budget

Earned Value Management Implementation

By now, you may agree with me that Earned Value Project Management enables the project managers to be more proactive than reactive. Being so, the next logical topic of interest would be about the implementation steps of Earned Value Management System.

Here are the logical steps for implementing Earned Value Management System;

  1. Organization
    1. Define Work Breakdown Structure
    2. Define project organization (Organization Breakdown Structure – OBS)
    3. Integrate processes
    4. Identify overhead management
    5. Integrate WBS / OBS to create Control accounts
  2. Planning, Scheduling and Budgeting
    1. Scheduling work
    2. Identify products and milestones for progress assessment
    3. Establish the performance measurement baseline
    4. Authorize and budget by cost elements
    5. Determine discrete work and objective measures
    6. Sum Detail budgets to Control account
    7. Level of Effort planning and control
    8. Establish overhead budgets
    9. Identify management reserve and undistributed budget
    10. Reconcile to target cost goal
  3. Accounting considerations
    1. Record direct costs
    2. Summarize direct costs by WBS elements
    3. Summarize direct costs by OBS elements
    4. Record / Allocate Indirect costs
    5. Identify unit and lot costs
    6. Track and report material costs and quantities
  4. Analysis and management reports
    1. Calculate schedule variance and cost variance
    2. Analyse significant variances
    3. Analyse indirect cost variances
    4. Summarize performance data and variances for management reporting
    5. Implement corrective actions
    6. Maintain Estimates at Completion (EAC)
  5. Revisions and data maintenance
    1. Incorporate changes in a timely manner
    2. Maintain baseline and reconcile budgets
    3. Control retroactive changes
    4. Prevent unauthorized revisions
    5. Document performance measurement baseline changes

Reference – Earned Value Management Systems EIA-748-D Intent Guide

Recommended reading

Applying Earned Value Management successfully

EVM progress monitoring using ‘S’ curves and Histograms of engineering deliverables

Bullet proofing Engineering Progress Monitoring

Integrated project management – harnessing technology for success

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Abrachan
Author
Abrachan Pudussery

Abrachan Pudussery is domain expert in Project Management area and a seasoned trainer. He heads the Wrench Academy, and brings in deep domain expertise and a conviction about higher quality in project management training.

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