PIMS User Guides

Time-phasing Current Control Estimate

Introduction

In the previous section, we saw how the Current Control Estimate is saved using the Baselines screen. This saved baseline shows how much each part of the project is expected to cost. In addition to this information, we also need to know when these costs are expected to occur. This information is of key importance for control purposes, as it allows us to know whether the project costs are being spent quicker or slower than expected. The timing of the Current Control Estimate is broken down according to the selected cut off type, for example, for each work package in the project. This is done using the Time Phasing Screen.

Time Phasing Screen

The Time Phasing screen is used to determine how the current CCE costs are expected to be utilized during the project. The Time Phasing screen looks as follows:

Figure 14: Time Phasing Form

Each work package that has been activated is listed on the right side (in the navigation grid). The monthly phasing values are listed by month vertically down the left hand side of the screen:

Column Description
Base Cost The planned cumulative cost, not inflated
Inflated Cost The planned cumulative cost, inflated
Progress The planned cumulative progress

Any three of the values can be entered, and the other two will be calculated automatically. However, the correct input method must first be selected using the Input options at the top of the screen:

If you have linked cost and progress, choose if you want to input cost or progress. The cost is chosen, the progress will automatically be calculated, and vice versa. If your estimate is “Base Cost”, you will input the cost in base cost, and the inflated cost will be calculated, and vice versa. The inflation factors defined in the Project Control Basis setup screen is utilized to calculate base or inflated cost.

The Auto Fill Down toolbar button will fill the remaining cut offs for the selected column with current value. On the right side there is graphical view of the time phasing. You can select what data you want to see on the chart by using the toggle buttons.

Rather than directly typing in the monthly values, it is also possible to calculate them using a ‘profile curve’. The profile curves are defined using the ‘Standard Profiles’ screen. This is found in the Project Control Basis section of the Navigator bar. An example profile curve is shown below:

Figure 15: Standard Profiles Form

To use a curve, select it using the Standard Profile pull-down list in the ‘Time phasing Options’ section.

When using a profile, the monthly values will be spread from the work packs Start Date to its Finish Date (see section “Work packages”). To do this, select the Phase According to Profile option in the toolbar. This can be performed for all work packages, or for only the one which is currently selected.

If there are inconsistencies in your data, a warning message will appear. Explanation of most common warning messages and potential corrective actions:

Warning Description
Phased cost differs from estimated cost Will typically happen If the estimate has been updated, but the new amount has not been time phased accordingly
The spread start date differs from work pack start date Indicates that the work package has a different start date than when the planned cost starts. To update the Start/Finish dates according to the cost phasing, press the toolbar button: “Update Start/Finish Dates according to Spread”
The spread finish date differs from work pack finish date Similar as above; but verifying the finish date instead.
Different End Period for Cost and Progress This warning is shown if the cost ends at a different cut off than the progress.

Work Pack Estimates

Figure 16: Estimate details for selected Work Pack

This tab page shows the estimate details for the selected work package. The details are not updatable, and you can not add or remove any items. For an explanation of the different fields, see the documentation of the Work Package Estimates form.

Spread Details

Figure 17: Spread Details for the selected Work Pack

In this tab page the key cost and progress data is shown:

Column Description
Cut Off Cut Off Date
Cumulative Cost
Planned Cost (Inflated) Cumulative planned cost, inflated
Planned Progress Cumulative planned progress
Planned Cost (Base) Cumulative planned cost, not inflated
Actual Cost (Preliminary) The preliminary actual cost. If the Preliminary Input functionality is not used, this field will be empty
Actual Cost Cumulative actual cost
Actual Progress Cumulative Actual progress
Earned Cumulative Earned Value
Booked Cumulative booked cost. Typically retrieved from the accounting system.
Committed Cumulative committed cost
Totals
Planned (Inflated) The total planned cost, inflated
Planned (Base) The total planned cost, not inflated
Forecast The total forecasted amount
Forecast Preliminary The total forecasted amount, reported in the Preliminary Input.
Periodic Showing the periodic values for the same fields as in the cumulative section
Comments Comments for the selected period
Preliminary Comments Preliminary Input comments for the selected period

To show or hide column, click on the “Column Chooser” button by right clicking with your mouse.