What is earned value management?

Cost and schedule overruns have become a common reality among large-scale industrial projects. France's Flamanville 3 nuclear reactor is a striking example. Originally estimated at €3.3 billion when construction began in 2007, the project's final cost climbed to roughly €13.2 billion, about four times its original budget, and the reactor connected to the grid in late 2024, some 12 years behind its original target.

No project manager wants to be at the helm of projects that stray off their course. When faced with these difficulties, project professionals rely on strong project management processes to resolve problems. Earned value management is one of these tried-and-true methods that can help project managers navigate any bumps in the road.

Earned value management (EVM) is a project management methodology that integrates schedule, costs and scope to measure project performance. Based on planned and actual values, EVM predicts the future and enables project managers to adjust accordingly.

In turn, Earned Value Management Systems (EVMS) refer to the software, processes, tools and templates used for EVM.

Another important term used in this context is earned value analysis (EVA). EVA is a quantitative technique used to evaluate project performance by analyzing schedule and cost variances.

EVM uses EVA as one of its tools but is larger in scope. While EVA stops with the compute portion, EVM is all about using that data in trends analysis and forecasting. EVM is a project management function that addresses both the data and the actions taken in light of it.

The origins of EVM

EVA, EVM and EVMS have a fascinating origin story. In the 1960s, The U.S. government drafted 35 criteria for contractor management systems to follow. Later in the 1990s, the American National Standard Institute (ANSI) and the Electronic Industries Association (EIA) developed these into 32 guidelines for EVMS, resulting in the ANSI/EIA 748 standard. For technology systems used in several U.S. government agencies such as the Department of Defense (DoD) and National Aeronautics and Space Administration (NASA), this has now become the gold standard.

At the same time, implementing EVM does not require the EIA 748 standard. All those criteria and the rules around them have contributed to a perception that EVM is difficult and onerous. The good news is that EVM metrics are straightforward and you can implement your EVM process with as much or as little rigor as your particular projects require.

Benefits of earned value management

According to research popularized by Fleming and Koppelman, once you're 20% into a project, you can use current performance to predict the final outcome within a plus or minus 10% deviation. EVM makes this predictive capability possible, making it one of the best project cost control measures available.

Earned value management offers many benefits, enabling you to:

• Map work with costs, reducing unknowns into quantifiable factors.

• Compare and benchmark the current status against the project baseline and identify critical paths.

• Create a data-based framework to take actions and make decisions for the future.

• Intervene fast and ahead of time (for example, you can tweak project scope and budgets, rollback functionalities, procure more resources, invest in better technologies, set customer expectations, pivot resources, etc.).

• Promote enhanced visibility and create accountability in stakeholders through clear metrics.

• Provide insight into the big picture at both project and portfolio levels.

Earned value management core concepts

EVM can be intimidating to some project managers, due to the many terminologies associated with it. EVM involves several core concepts, each building on the last. We'll also provide a list of the most important EVM formulas for reference below. Each of these concepts plays a key role in improving project performance.

Planned value (PV)

Planned value is the budgeted cost for work scheduled (BCWS). PV varies based on the scope of work in consideration and the point where you're at in the overall schedule.

PV = Total project cost * % of planned work

For example, let's say, the PV for your 5-month project is $25,000:

PV for the complete project = $25,000

PV at 2 months = $25,000 * 40% = $10,000

You can also calculate PV for a time period, say, month 2 to month 4 = $25,000 * 60% = $15,000.

Actual costs (AC)

Actual costs, also known as actual cost of work performed (ACWP), is relatively straightforward. If you are using a robust project cost management software, tracking actual costs should not be a challenge. However, it's important to remember to include several hidden costs: material, resource, hardware, software licenses, overheads, etc.

You can look at AC cumulatively, accounting for all the activities done from the beginning of the project to date or over a specific time period.

In our example, let's assume, AC at the end of 2 months = $15,000

Earned value (EV)

You've made a plan to complete a certain amount of work and budgeted accordingly. But, from experience, you know that there is bound to be some discrepancy from your estimate. At the end of 2 months, you may have planned to complete 40% of your work, but let's say you only managed to finish 30%.

The question, then, is, what's the budgeted cost for this work? EV, also referred to as budgeted cost for work performed (BCWP), gives you the answer.

In our example:

EV = Total project cost * % of actual work = $25,000 * 30% = $7,500

Variance analysis

Planned value, actual cost and earned value numbers are essential to variance calculations. At this point, the project manager wants to know how far off we are from the project baseline. Schedule and cost variance determine this.

Schedule variance (SV)

Schedule variance is a quantitative indicator of your divergence from the initial planned schedule. A negative SV indicates that we are behind schedule, a positive SV indicates that we are ahead of schedule and zero means that we are exactly on schedule.

SV = EV - PV

In our example, SV at 2 months = $7,500 − $10,000 = -$2,500

SV% = (SV/PV) *100 = (-$2,500/$10,000) *100 = -25%

This implies that we are 25% behind schedule. It's interesting to note that we aim to understand schedule, a time component, from the perspective of costs. To arrive at these costs though, we needed to know the scope of work planned and completed. This is how the three pillars – scope, time and cost – come together in EVM.

Cost variance (CV)

Cost variance is a quantitative indicator of your divergence from the initial planned budget. A negative CV indicates that we are over budget, a positive CV indicates that we are under budget and zero means that we are exactly on budget.

CV = EV − AC

In our example, CV at 2 months = $7,500 − $15,000 = -$7500

CV% = (CV/EV) *100 = (-$7,500/$7,500) *100 = -100%

This implies that we are 100% over budget.

Again, this is an instance of how scope, time and cost come together to give you a clear picture of where you currently stand in your project.

Performance indexes

Another way of looking at project performance, apart from variance, is through indexes. Here again, we have two parameters – schedule and cost index.

Schedule performance index (SPI)

SPI gives a sense of project performance from a schedule perspective.

SPI = EV/PV; SPI > 1 indicates the project is ahead of schedule and SPI < 1 indicates the project is behind schedule. In our example, SPI = $7,500/$10,000 = 0.75, indicating the project is only going 75% as per the original plan or it's 25% behind schedule.

Cost performance index (CPI)

CPI gives a sense of project performance from a cost perspective. CPI = EV/AC; CPI > 1 indicates the project is under budget and CPI < 1 indicates the project is over budget.

In our example, CPI = $7,500/$15,000 = 0.5, indicating the project expenditures are only at 50% of the plan.

Earned value management formulas

Here are the most important EVM formulas:

Planned Value (PV)

• Formula: PV = Planned % Complete * BAC (Budget at Completion)

• Description: The authorized budget assigned to scheduled work up to a specific point in time. Also referred to as Budgeted Cost for Work Scheduled (BCWS).

Earned Value (EV)

• Formula: EV = Actual % Complete * BAC

• Description: The value of work completed to date, expressed in terms of the approved budget. Also referred to as Budgeted Cost for Work Performed (BCWP).

Actual Cost (AC)

• Formula: AC = Sum of Costs Incurred

• Description: The actual cost incurred for the work completed to date. Also referred to as Actual Cost of Work Performed (ACWP).

Cost Variance (CV)

• Formula: CV = EV - AC

• Description: The difference between earned value and actual cost at a given point in time. A negative CV indicates the project is over budget; a positive CV indicates it is under budget; zero indicates on budget.

Schedule Variance (SV)

• Formula: SV = EV - PV

• Description: The difference between earned value and planned value at a given point in time. A negative SV indicates the project is behind schedule; a positive SV indicates ahead of schedule; zero indicates on schedule.

Cost Performance Index (CPI)

• Formula: CPI = EV / AC

• Description: A measure of cost efficiency. A CPI > 1 indicates cost efficiency is better than planned (under budget), while a CPI < 1 indicates project expenditures exceed the baseline plan.

Schedule Performance Index (SPI)

• Formula: SPI = EV / PV

• Description: A measure of schedule efficiency. An SPI > 1 indicates the project is progressing faster than scheduled, while an SPI < 1 indicates work is behind schedule.

Estimate at Completion (EAC)

• Formula (Typical Variances): EAC = BAC / CPI (Used when future cost performance is expected to mirror past performance)

• Formula (Atypical Variances): EAC = AC + (BAC - EV) (Used when current variances are considered anomalies not expected to continue)

• Description: The expected total cost of completing all project work based on performance to date.

Estimate to Complete (ETC)

• Formula: ETC = EAC - AC

• Description: The expected cost remaining to finish all outstanding project scope.

Variance at Completion (VAC)

• Formula: VAC = BAC - EAC

• Description: The projected budget surplus or deficit at the conclusion of the project.

To-Complete Performance Index (TCPI)

• Formula (Targeting BAC): TCPI = (BAC - EV) / (BAC - AC)

• Formula (Targeting EAC): TCPI = (BAC - EV) / (EAC - AC)

• Description: The cost performance efficiency required on remaining work to achieve a specific management goal (BAC or EAC). A TCPI > 1 means remaining work must be executed with higher cost efficiency than originally budgeted.

Here is a typical system landscape supporting EVM:

• The ERP system contains key information such as actual cost, timesheets, commitments, etc.

• The Enterprise Project Performance system, Octave Sequence Enterprise (formerly EcoSys), becomes the central platform and EVM engine. You can bring together key data from other systems. Then, you can perform key functions such as budgets, change management, progress measurement, earned value analysis, forecasts and reporting.

• The scheduling tool is the basis of key information. This includes information such as the WBS, activity codes, dates, resource allocation and percent complete.

Earned value management process

ISO 21508 provides guidance for practices of EVM in project and program management. It is applicable to any type of organization including public or private and any size or sector. It also applies to any type of project or program in terms of complexity, size or duration. The main processes are the following:

• Project planning processes (Plan the work) with the PMB as the final deliverable

• Processes of execution of the plan (Work the plan) that generate the reports and support decision making

5 fundamentals of earned value management

Earned value management is all about measuring and benchmarking against a well-defined plan. Therefore, you can only perform this in organizations with a certain key elements in place. The guidelines defined under the EIA-748 standard discuss, in detail, the fundamental processes and systems for the implementation of EVM. These guidelines cover five broad principles. But again, the level of detail and overhead to implement should vary based on factors including organizational maturity, project size and complexity and contractual requirements. Let's review these principles.

1. Organization and scope of project

We start by identifying the 'what' element of the project with requirements collection and scope definitions. The five guidelines documented as part of this principle recommend us to create three important documents:

• Work breakdown structure (WBS): Create a WBS dividing high-level deliverables into smaller work packages. This graphical representation of the work we have set out to complete gives clarity on the scope.

• Organization breakdown structure (OBS): Create an OBS, a form of an organization chart, which shows the people, teams and departments that are involved in a project, along with their hierarchy, roles and responsibilities. OBS addresses the 'who' element.

• Responsibility assignment matrix (RAM): Interpose the WBS and OBS to create a RAM, defining exactly which task will be performed by whom. Future stages will measure each of these mappings or control accounts.

2. Planning, scheduling and budgeting

The objective of the guidelines in this principle is to help define the project baseline in concrete terms. The project team monitors and controls the project against these parameters throughout the lifecycle.

The WBS is a good starting point for the planning stage. We group multiple activities under a single work package and multiple work packages under a single control account. Each account will have an account manager who will monitor its progress (in reality, the same person could manage multiple accounts).

At this point, we define the "when" element, defining both high- and low-level milestones and assigning clear due dates to each activity.

Then, we move on to time-phased budget allocation, apportioning the total budget at the level of each activity inside a work package. This includes costs, such as labor, material and subcontracting. We also assign methods of progress measurement to each work package, which will decide how you will calculate EV at a later point for a task-in-progress.

The sum of all budgeted work forms the performance measurement baseline. Project managers also allocate management reserves for unexpected scope increases.

3. Accounting for actual costs

A set of six guidelines discusses the process of cost calculation. The focus of this activity is simple – to measure the actual costs. But it's important to have systems in place that can track costs at a work package level, otherwise it'll be difficult to measure progress accurately. Also, it's possible that you may be incurring/paying out the actual costs only a few months later, but you must allocate a portion of it much earlier to calculate earned value. To avoid these booking lags, the guidelines call for accounting for accruals.

4. Analyzing and reporting on project performance

Six guidelines describe the calculations of PV, EV, AC along with variances and indexes in detail in this section. Report these numbers consistently so team members, senior leaders and customers can track project progress.

But the focus is as much on identifying the corrective actions to be taken as the measurement against the baseline and reporting numbers. The guidelines recommend defining variance thresholds; when the cost performance reports indicate a threshold breach in a control account, project managers can drill down to spot the problematic tasks.

5. Revisions and data maintenance

The five guidelines under this section acknowledge that the project baseline is not rigid, especially when you uncover problem areas mid-project. But you cannot revise a baseline every time you overspend or there is a delay in a task. Some scenarios when the guidelines recommend revising a baseline are when there is an authorized change to the scope, cost or schedule of the project or when there is fluctuation in rates.

This section covers activities such as creating change management and risk management plans, seeking necessary approvals and evaluating the need to dip into the management reserve.

Find the right EVM solution for your projects

Earned value management gives you something most forecasting methods can't: an early, evidence-based read on where your project will actually finish. But that precision depends on the system behind it. Without a capable Earned Value Management System (EVMS), even the best EVM methodology stalls at the point where projects grow large and complex, which is exactly where you need it most.

Sequence Enterprise is built for that scale. It supports every level of EVM, from basic performance measures to full compliance with the EIA-748 standard, with the structure serious programs depend on: control account definition, Work Breakdown Structure (WBS) and Organizational Breakdown Structure (OBS). And because it's an enterprise project performance (EPP) platform, EVM doesn't live in a silo. It sits alongside project portfolio management, project management and project controls in one system, integrated with your ERP, financial systems, scheduling tools and timesheets so cost and resource data flow in automatically.

See what earned value looks like when the whole system works together. Contact us to get started.