AACE EVP key terms
AACE EVP · Get comfortable with the vocabulary.
- Earned Value Management (EVM)
- Related: Planned Value (PV), Earned Value (EV), Actual Cost (AC)
A project performance method that compares the value of work completed against the planned value and the actual cost, giving objective indicators of schedule and cost status.
- Planned Value (PV)
- Related: Earned Value (EV), Budget at Completion (BAC)
The authorized budget assigned to scheduled work at a given point in time; it represents what the project should have accomplished and spent by that date.
- Earned Value (EV)
- Related: Planned Value (PV), Actual Cost (AC), Percent Complete
The budgeted value of work actually completed by a given date, calculated from the baseline budget for those activities rather than from what was spent on them.
- Actual Cost (AC)
- Related: Earned Value (EV), Cost Variance (CV)
The total cost actually incurred and recorded for work performed during a given period, including direct labor, materials, and other charges posted to the project.
- Budget at Completion (BAC)
- Related: Planned Value (PV), Estimate at Completion (EAC)
The sum of all authorized budgets established for the total scope of work on a project; the baseline total against which final performance will be judged.
- Cost Variance (CV)
- Related: Cost Performance Index (CPI), Earned Value (EV)
The difference between earned value and actual cost. A positive result means work is costing less than budgeted; a negative result means it is costing more.
- Schedule Variance (SV)
- Related: Schedule Performance Index (SPI), Planned Value (PV)
The difference between earned value and planned value, expressed in budget currency. A negative result indicates less work was completed than scheduled.
- Cost Performance Index (CPI)
- Related: Cost Variance (CV), To-Complete Performance Index (TCPI)
Earned value divided by actual cost. A value below 1.0 means each unit of currency spent is buying less than one unit of planned work.
- Schedule Performance Index (SPI)
- Related: Schedule Variance (SV), Earned Schedule
Earned value divided by planned value. A value below 1.0 means work is progressing more slowly than the baseline schedule assumed.
- Estimate at Completion (EAC)
- Related: Estimate to Complete (ETC), Variance at Completion (VAC)
A forecast of the total cost the project will have incurred when all work is finished, typically derived by adjusting the budget at completion for expected performance.
- Estimate to Complete (ETC)
- Related: Estimate at Completion (EAC), Budget at Completion (BAC)
The expected cost of the remaining work, calculated as the forecast total cost at completion minus costs already incurred to date.
- Variance at Completion (VAC)
- Related: Estimate at Completion (EAC), Budget at Completion (BAC)
The projected final cost difference, calculated as the budget at completion minus the estimate at completion. A negative value signals an expected overrun.
- To-Complete Performance Index (TCPI)
- Related: Cost Performance Index (CPI), Estimate at Completion (EAC)
The cost efficiency the remaining work must achieve to hit a specified target, calculated as remaining budget divided by remaining work.
- Work Breakdown Structure (WBS)
- Related: Control Account, Work Package
A hierarchical decomposition of total project scope into progressively smaller deliverables and work packages that can be estimated, scheduled, and controlled.
- Control Account
- Related: Work Package, Work Breakdown Structure (WBS)
A management point in the work breakdown structure where scope, budget, actual cost, and schedule are integrated and compared against baseline for performance measurement.
- Work Package
- Related: Control Account, Planning Package
The lowest level of the work breakdown structure at which work is estimated, scheduled, and tracked; it sits beneath a control account and has defined scope, dates, and budget.
- Planning Package
- Related: Work Package, Control Account
A work breakdown structure element below a control account that holds budget and scope for future work not yet detailed into individual work packages.
- Performance Measurement Baseline (PMB)
- Related: Management Reserve, Undistributed Budget
The time-phased budget plan for all authorized work, against which project execution is measured; it excludes management reserve and undistributed budget.
- Management Reserve
- Related: Performance Measurement Baseline (PMB), Contingency Reserve
A budget held outside the performance measurement baseline by management for unanticipated scope within the project's authorized work; its use requires formal approval.
- Undistributed Budget
- Related: Performance Measurement Baseline (PMB), Management Reserve
Authorized budget for work that has been identified in scope but not yet assigned to a control account or planning package for performance measurement.
- Contingency Reserve
- Related: Management Reserve, Performance Measurement Baseline (PMB)
Budget set aside inside the baseline for known risks and uncertainties with identified causes, used to absorb impacts without changing the performance measurement baseline.
- Earned Value Measurement Method
- Related: Percent Complete, Milestone Method, Units Completed Method
The rule chosen for each work package to quantify physical progress objectively, such as weighted milestones, percent complete, or units completed.
- Weighted Milestone Method
- Related: Milestone Method, Earned Value Measurement Method
A measurement technique in which a work package is divided into milestones, each assigned a budget value, and earned value is claimed as each milestone is formally achieved.
- Percent Complete Method
- Related: Earned Value Measurement Method, Units Completed Method
A measurement approach where earned value equals the estimated fraction of a work package finished multiplied by its budget; best used for long-duration tasks with measurable progress.
- Units Completed Method
- Related: Percent Complete Method, Earned Value Measurement Method
A measurement technique that credits earned value in proportion to the number of identical or similar units produced, using a fixed budget per unit.
- Earned Schedule
- Related: Schedule Performance Index (SPI), Schedule Variance (SV)
A time-based extension of earned value that converts earned value into the schedule period in which it was planned to be achieved, yielding schedule variance and index in time units.
- Baseline
- Related: Performance Measurement Baseline (PMB), Integrated Baseline Review (IBR)
An approved, time-phased plan for scope, schedule, and cost against which actual performance is compared; changes to it require formal control.
- Integrated Baseline Review (IBR)
- Related: Baseline, Performance Measurement Baseline (PMB)
A joint review by customer and contractor of the performance measurement baseline to confirm it is realistic, complete, and technically sound before or during execution.
- Change Control
- Related: Baseline, Management Reserve
The formal process for identifying, evaluating, approving or rejecting, and documenting changes to project scope, schedule, or cost baselines.
- Scope Change
- Related: Change Control, Baseline
Any addition, deletion, or modification to the agreed project scope; when approved, it typically requires a corresponding adjustment to budget and schedule baselines.
- Internal Replanning
- Related: Change Control, Performance Measurement Baseline (PMB)
A reallocation of budget and schedule among remaining work within the existing baseline, used when execution deviates but total scope and budget remain unchanged.
- Budgeted Cost for Work Scheduled (BCWS)
- Related: Planned Value (PV), Budgeted Cost for Work Performed (BCWP)
The traditional name for planned value: the budget assigned to work that was scheduled to be accomplished by a given reporting date.
- Budgeted Cost for Work Performed (BCWP)
- Related: Earned Value (EV), Budgeted Cost for Work Scheduled (BCWS)
The traditional name for earned value: the budget assigned to work that has actually been completed by a given reporting date.
- Actual Cost of Work Performed (ACWP)
- Related: Actual Cost (AC), Budgeted Cost for Work Performed (BCWP)
The traditional name for actual cost: the costs actually incurred for work completed during a given reporting period.
- Variance Analysis
- Related: Cost Variance (CV), Schedule Variance (SV), Earned Value Management (EVM)
The practice of comparing planned, earned, and actual results, explaining the causes of significant deviations, and deciding what corrective action is warranted.
- Performance Reporting
- Related: Variance Analysis, Estimate at Completion (EAC)
The periodic communication of planned versus actual cost and schedule performance, variances, and forecasts to stakeholders in a consistent, agreed format.
- Forecasting
- Related: Estimate at Completion (EAC), To-Complete Performance Index (TCPI)
The process of projecting future cost and schedule outcomes using current performance indices, trends, and known risks to support management decisions.