ISA² Dashboard

Efficiency

1. Overall view

Earned Value Management (EVM) is the method chosen to monitor the efficiency of the ISA2 programme. To achieve an overall efficiency measurement of the programme, EVM is implemented across the different actions. EVM is however only applied to actions that have a complete Work Breakdown Structure established.

All Actions

Information

The chart below consolidates data from the 54 Actions of the ISA Programme which are monitored so far.

Data displayed have been updated on: 20/09/2021

Overall efficiency rating

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SPI rating

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% of Delay rating

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The different charts of this page present data related to actions that match the applied filter.

The pie charts give an overview of the status of the actions composing the ISA programme in terms of efficiency via the use of three different ratings:

  • The Overall efficiency rating which is a simple average of the Schedule Performance Index (SPI) rating and the % of delay rating.
  • The Schedule Performance Index (SPI) rating and % of Delay rating are calculated for each ISA action as shown in the table below.

To calculate the ratings, the following rules are applied:

SPI value% Delay valueCorresponding rating
SPI <= 10% <= % Delay10
0,95 <= SPI < 1-15% <= % Delay < 0%7
0,85 <= SPI < 0,95- 30% <= % Delay < -15%3
SPI < 0,85% Delay < - 30%0

To identify proportions, the following colour code is used:

Colour codeMeaningCorresponding rating
GreenProportion of actions in good standing7 <= rating <= 10
YellowProportion of actions requiring attentionRating = 3
RedProportion of actions requiring correction measuresRating = 0
GreyProportion of actions having no Work Breakdown Structure defined No rating

The efficiency rating history chart presents the evolution of the 3 ratings (Overall efficiency rating, SPI rating and % of Delay rating) over the time.

Efficiency rating history

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2. Estimated Total Budget

3. Earned Value Analysis at programme level

This chart compares the Earned Value (EV) and Planned Value (PV) of the ISA2 programme.

  • The Cumulated Earned Value is the addition of the Earned Values of the different actions of the programme for which the EVM is implemented.
  • The Cumulated Planned Value is the addition of the Planned Values of the different actions of the programme for which the EVM is implemented.
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Notes:

  • EV > PV means that the programme is over performing.
  • EV < PV means that the programme is under performing.
  • EV = PV means that the programme is on schedule.

4. Performance Index

This chart compares cost and schedule performance of the ISA2 Programme.

  • The Cost Performance Index (CPI) refers specifically to a method implemented for the purposes of measuring the actual cost efficiency. The cost performance index is determined by measuring the ratio of Earned Value (EV) to Actual Cost (AC).
  • The Schedule Performance Index (SPI) refers specifically to a method implemented for the purposes of measuring the actual schedule efficiency. The cost performance index is determined by measuring the ratio of Earned Value (EV) to Planned Value (PV).
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Notes:

  • SPI>1 means that the programme is ahead of schedule.
  • SPI<1 means that the programme is behind schedule.
  • CPI>1 means that the cost is greater than budgeted.
  • CPI<1 means that the cost is less than budgeted.

5. Estimate At Completion

This chart compares the Budget At Completion (BAC) to the Estimated At Completion (EAC) of the ISA2 programme.

  • Budget At Completion (BAC) is the sum of all Undergoing and Completed Specific Contracts financed by the ISA2 budget.
  • EAC is the estimated cost of completing the authorised remaining work; it is calculated as the sum of the Actual Cost to date plus an Estimate To Complete (ETC).
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Notes:

  • EAC > BAC means that the programme will probably require more budget to be completed.
  • EAC < BAC means that the programme will probably require less budget to be completed.

6. Variance Analysis

This chart refers specifically to the measurement of cost and schedule performance.

  • Cost Variance (CV) is calculated as the difference between the Earned Value of work performed and its Actual Cost.
  • Scheduled Variance (SV) is calculated as the difference between the Earned Value of work performed and its Planned Value.
  • Variance At Completion (VAC) is calculated as the difference between the Budget At Completion and the Estimate At Completion.
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Notes:

  • CV>0 and VAC>0 means that the programme is under budget.
  • CV=0 and VAC=0 means that the programme is on track.
  • CV<0 and VAC<0 means that the programme is over budget.
  • SV>0 means that the programme is ahead of schedule.
  • SV=0 means that the programme is on schedule.
  • SV<0 means that the programme is behind schedule.