The Earned Value Management Macros

Example 9.2: Construction Project

This example illustrates a home building multiproject. The cost structure of the multiproject consists of both rates and fixed costs. This example also demonstrates how to accommodate multiple status dates. The initial schedule is shown in Figure 9.2.1.

Output 9.2.1: Initial Schedule GBSCHED

Planned Construction Schedule Obs Activity WBS Code Duration Scheduled Start Scheduled Finish 1 Build House 0 1 04SEP04 12OCT04 2 Landscaping 0.00 1 29SEP04 10OCT04 3 Finish Grading 0.00.0 2 29SEP04 30SEP04 4 Walks & Landscape 0.00.1 5 06OCT04 10OCT04 5 Drainage 0.01 1 28SEP04 29SEP04 6 Gutters & Downspouts 0.01.0 1 28SEP04 28SEP04 7 Storm Drains 0.01.1 1 29SEP04 29SEP04 8 Wiring 0.02 1 14SEP04 05OCT04 9 Initial Wiring 0.02.0 2 14SEP04 15SEP04 10 Kitchen Fixtures 0.02.1 1 03OCT04 03OCT04 11 Finish Electrical 0.02.2 1 04OCT04 04OCT04 12 Finish Carpentry 0.02.3 3 03OCT04 05OCT04 13 Plumbing 0.03 1 10SEP04 04OCT04 14 Rough Plumbing 0.03.0 3 11SEP04 13SEP04 15 Basement Plumbing 0.03.1 1 10SEP04 10SEP04 16 Finish Plumbing 0.03.2 2 03OCT04 04OCT04 17 Foundation 0.04 1 04SEP04 15SEP04 18 Excavate & Footers 0.04.0 4 04SEP04 07SEP04 19 Pour Foundation 0.04.1 2 08SEP04 09SEP04 20 Pour Basement 0.04.2 2 14SEP04 15SEP04 21 Roofing 0.05 1 10SEP04 27SEP04 22 Finish Roof 0.05.0 2 26SEP04 27SEP04 23 Frame & Roof 0.05.1 4 10SEP04 13SEP04 24 Flooring 0.06 1 30SEP04 12OCT04 25 Varnish Floor 0.06.0 2 11OCT04 12OCT04 26 Finish Flooring 0.06.1 3 30SEP04 02OCT04 27 Heat & Ventilation 0.07 4 16SEP04 19SEP04 28 Plaster 0.08 10 20SEP04 29SEP04 29 Brickwork 0.09 6 20SEP04 25SEP04 30 Paint 0.10 3 06OCT04 08OCT04

The Work Breakdown Structure for the project is given in Figure 9.2.2; this chart was created using the %EVG_WBS_CHART macro.

    %evg_wbs_chart(
     structure=gbsched,
     activity=activity,
     project=project,
     id=wbs_code id,
     rotate=N,
     rotatetext=N,
     defid=N
    );
 

Output 9.2.2: %EVG_WBS_CHART: Work Breakdown Structure

Figure 9.2.3 lists the budgeted costs for each task.

Output 9.2.3: Budgeted Cost Rates GBASE

Planned Construction Costs Obs Activity Cost Start Pct./Weights Rate 1 Build House 0 0 0 2 Landscaping 0 0 0 3 Drainage 0 0 0 4 Wiring 0 0 0 5 Plumbing 0 0 0 6 Foundation 0 0 0 7 Roofing 0 0 0 8 Flooring 0 0 0 9 Heat & Ventilation 325 50 40 10 Plaster 14500 1,2,3,4 20 11 Brickwork 9500 1,2,3 45 12 Paint 3250 50 30 13 Finish Grading 425 25 25 14 Walks & Landscape 2475 25 25 15 Gutters & Downspouts 1200 50 15 16 Storm Drains 150 25 15 17 Initial Wiring 575 25 45 18 Kitchen Fixtures 375 25 25 19 Finish Electrical 550 25 50 20 Finish Carpentry 1450 25 20 21 Rough Plumbing 1025 25 30 22 Basement Plumbing 1000 25 50 23 Finish Plumbing 350 25 20 24 Excavate & Footers 5250 50 20 25 Pour Foundation 1500 25 15 26 Pour Basement 950 50 20 27 Finish Roof 725 50 40 28 Frame & Roof 9500 25 35 29 Varnish Floor 750 25 15 30 Finish Flooring 425 50 25

Note that the "Storm Drains" task, in the sixteenth observation, costs one quarter (25%) of $150 upon initiation and continues at a rate of $15/day. When complete, the balance (75%) of the $150 is charged. Weighted milestones are specified for the "Plaster" activity, given in Observation 10. At the start, one tenth of $14,500, or $1,450, is incurred. The rate is $20/day. When the task is one third complete, another fifth of $14,500, or $2,900, is incurred. At completion, the cost is two fifths of $14,500, or $5,800.

The %EVA_PLANNED_VALUE macro is next invoked to compute the periodic planned value.

    %eva_planned_value(
        plansched=gbsched,
        activity=activity,
        start=start,
        finish=finish,
        budgetcost=gbase,
        rate=rate,
        cost=cost,
        spct=spct,
        taskpv=bout,
        pv=gbcost
    );
 

The periodic planned value data set is shown in Figure 9.2.4.

Output 9.2.4: %EVA_PLANNED_VALUE: Periodic Data Set

Daily Planned Value Obs Period Identifier PV Rate 1 04SEP04 2645.00 2 05SEP04 20.00 3 06SEP04 20.00 4 07SEP04 2645.00 5 08SEP04 390.00 6 09SEP04 1140.00 7 10SEP04 3460.00 8 11SEP04 321.25 9 12SEP04 65.00 10 13SEP04 7958.75 11 14SEP04 683.75 12 15SEP04 971.25 13 16SEP04 202.50 14 17SEP04 40.00 15 18SEP04 40.00 16 19SEP04 202.50 17 20SEP04 3098.33 18 21SEP04 65.00 19 22SEP04 3231.67 20 23SEP04 2965.00 21 24SEP04 65.00 22 25SEP04 4815.00 23 26SEP04 4772.50 24 27SEP04 422.50 25 28SEP04 1235.00 26 29SEP04 6116.25 27 30SEP04 581.25 28 01OCT04 25.00 29 02OCT04 237.50 30 03OCT04 890.00 31 04OCT04 902.50 32 05OCT04 1107.50 33 06OCT04 2298.75 34 07OCT04 55.00 35 08OCT04 1680.00 36 09OCT04 25.00 37 10OCT04 1881.25 38 11OCT04 202.50 39 12OCT04 577.50

Notice that the TASKPV= parameter has been used to ultimately pass the planned activity duration and costs to %EVA_EARNED_VALUE. Assume that the schedule has been updated to reflect actual start and finish times, as of the status date September 15, 2004. The updated schedule is shown in Figure 9.2.5.

Output 9.2.5: Updated Schedule GASCHED

Updated Construction Schedule Obs Activity WBS Code Duration Scheduled Start Scheduled Finish 1 Build House 0 1 04SEP04 17OCT04 2 Landscaping 0.00 1 04OCT04 15OCT04 3 Drainage 0.01 1 03OCT04 04OCT04 4 Wiring 0.02 1 19SEP04 10OCT04 5 Plumbing 0.03 1 15SEP04 09OCT04 6 Foundation 0.04 1 04SEP04 20SEP04 7 Roofing 0.05 1 15SEP04 02OCT04 8 Flooring 0.06 1 05OCT04 17OCT04 9 Heat & Ventilation 0.07 4 21SEP04 24SEP04 10 Plaster 0.08 10 25SEP04 04OCT04 11 Brickwork 0.09 6 25SEP04 30SEP04 12 Paint 0.10 3 11OCT04 13OCT04 13 Finish Grading 0.00.0 2 04OCT04 05OCT04 14 Walks & Landscape 0.00.1 5 11OCT04 15OCT04 15 Gutters & Downspouts 0.01.0 1 03OCT04 03OCT04 16 Storm Drains 0.01.1 1 04OCT04 04OCT04 17 Initial Wiring 0.02.0 2 19SEP04 20SEP04 18 Kitchen Fixtures 0.02.1 1 08OCT04 08OCT04 19 Finish Electrical 0.02.2 1 09OCT04 09OCT04 20 Finish Carpentry 0.02.3 3 08OCT04 10OCT04 21 Rough Plumbing 0.03.0 3 16SEP04 18SEP04 22 Basement Plumbing 0.03.1 1 15SEP04 15SEP04 23 Finish Plumbing 0.03.2 2 08OCT04 09OCT04 24 Excavate & Footers 0.04.0 4 04SEP04 11SEP04 25 Pour Foundation 0.04.1 2 12SEP04 14SEP04 26 Pour Basement 0.04.2 2 19SEP04 20SEP04 27 Finish Roof 0.05.0 2 01OCT04 02OCT04 28 Frame & Roof 0.05.1 4 15SEP04 18SEP04 29 Varnish Floor 0.06.0 2 16OCT04 17OCT04 30 Finish Flooring 0.06.1 3 05OCT04 07OCT04

The updated cost rates are given in Figure 9.2.6.

Output 9.2.6: Updated Cost Rates GACT

Updated Construction Costs Obs Activity Rate Cost Start Pct./Weights 1 Build House 0 0 0 2 Landscaping 0 0 0 3 Drainage 0 0 0 4 Wiring 0 0 0 5 Plumbing 0 0 0 6 Foundation 0 0 0 7 Roofing 0 0 0 8 Flooring 0 0 0 9 Heat & Ventilation 40 325 50 10 Plaster 20 14500 1,2,3,4 11 Brickwork 45 9500 1,2,3 12 Paint 30 3250 50 13 Finish Grading 25 425 25 14 Walks & Landscape 25 2475 25 15 Gutters & Downspouts 15 1200 50 16 Storm Drains 15 150 25 17 Initial Wiring 45 575 25 18 Kitchen Fixtures 25 375 25 19 Finish Electrical 50 550 25 20 Finish Carpentry 20 1450 25 21 Rough Plumbing 30 1025 25 22 Basement Plumbing 50 1000 25 23 Finish Plumbing 20 350 25 24 Excavate & Footers 30 6350 50 25 Pour Foundation 30 2700 25 26 Pour Basement 20 950 50 27 Finish Roof 40 725 50 28 Frame & Roof 35 9500 25 29 Varnish Floor 15 750 25 30 Finish Flooring 25 425 50

The %EVA_EARNED_VALUE macro can then be called as follows:

    %eva_earned_value(
        revisesched=gasched,
        activity=activity,
        start=start,
        finish=finish,
        actualcost=gact,
        rate=rate,
        cost=cost,
        spct=spct,
        taskpv=bout,
        ev=gacost
    );
 

The periodic earned value data set that is generated by %EVA_EARNED_VALUE is shown in Figure 9.2.7.

Output 9.2.7: %EVA_EARNED_VALUE: Periodic Data Set

Daily Earned Value and Revised Cost Obs Period Identifier EV Rate AC Rate 1 04SEP04 2635.00 3205.00 2 05SEP04 10.00 30.00 3 06SEP04 10.00 30.00 4 07SEP04 10.00 30.00 5 08SEP04 10.00 30.00 6 09SEP04 10.00 30.00 7 10SEP04 10.00 30.00 8 11SEP04 2635.00 3205.00 9 12SEP04 385.00 705.00 10 13SEP04 10.00 30.00 11 14SEP04 1135.00 2055.00 12 15SEP04 3460.00 3460.00 13 16SEP04 321.25 321.25 14 17SEP04 65.00 65.00 15 18SEP04 7958.75 7958.75 16 19SEP04 683.75 683.75 17 20SEP04 971.25 971.25 18 21SEP04 202.50 202.50 19 22SEP04 40.00 40.00 20 23SEP04 40.00 40.00 21 24SEP04 202.50 202.50 22 25SEP04 3098.33 3098.33 23 26SEP04 65.00 65.00 24 27SEP04 3231.67 3231.67 25 28SEP04 2965.00 2965.00 26 29SEP04 65.00 65.00 27 30SEP04 4815.00 4815.00 28 01OCT04 4772.50 4772.50 29 02OCT04 422.50 422.50 30 03OCT04 1235.00 1235.00 31 04OCT04 6116.25 6116.25 32 05OCT04 581.25 581.25 33 06OCT04 25.00 25.00 34 07OCT04 237.50 237.50 35 08OCT04 890.00 890.00 36 09OCT04 902.50 902.50 37 10OCT04 1107.50 1107.50 38 11OCT04 2298.75 2298.75 39 12OCT04 55.00 55.00 40 13OCT04 1680.00 1680.00 41 14OCT04 25.00 25.00 42 15OCT04 1881.25 1881.25 43 16OCT04 202.50 202.50 44 17OCT04 577.50 577.50

The BUDGETCOST= parameter has been employed to capture the planned duration and costs for each activity. Next, the %EVA_METRICS macro is used to produce statistics for the entire project. For illustrative purposes, a range of times from the start of the project to the revised projected end date is used. Typically, only actual status dates would be used; in this case, perhaps September 4, 2004 and September 15, 2004. Unless otherwise noted, the latter is the assumption for the remainder of the macros in this example.

    %eva_metrics(
        pv=gbcost,
        ev=gacost,
        timenow='04SEP04'd '15SEP04'd '01OCT04'd '17OCT04'd
    );
 

The output listing is given in Figure 9.2.8.

Output 9.2.8: %EVA_METRICS: Summary Statistics

Earned Value Analysis Metric September 4, 2004 September 15, 2004 October 1, 2004 October 17, 2004 Percent Complete 4.54 17.78 68.59 100.00 PV (Planned Value) 2645.00 20320.00 48197.50 58055.00 EV (Earned Value) 2635.00 10320.00 39817.50 58055.00 AC (Actual Cost) 3205.00 12840.00 42337.50 60575.00 CV (Cost Variance) -570.00 -2520.00 -2520.00 -2520.00 CV% -21.63 -24.42 -6.33 -4.34 SV (Schedule Variance) -10.00 -10000.00 -8380.00 0.00 SV% -0.38 -49.21 -17.39 0.00 CPI (Cost Performance Index) 0.82 0.80 0.94 0.96 SPI (Schedule Performance Index) 1.00 0.51 0.83 1.00 BAC (Budget At Completion) 58055.00 58055.00 58055.00 58055.00 EAC (Revised Estimate At Completion) 60575.00 60575.00 60575.00 60575.00 EAC (Overrun to Date) 58625.00 60575.00 60575.00 60575.00 EAC (Cumulative CPI) 70613.39 72231.22 61729.23 60575.00 EAC (Cumulative CPI X SPI) 70869.21 129780.85 65810.42 60575.00 ETC (Estimate To Complete)* 67408.39 59391.22 19391.73 0.00 VAC (Variance At Completion)* -12558.39 -14176.22 -3674.23 -2520.00 VAC%* -21.63 -24.42 -6.33 -4.34 TCPI (BAC) (To-Complete Performance Index) 1.01 1.06 1.16 0.00 TCPI (EAC) (To-Complete Performance Index)* 0.82 0.80 0.94 0.94 * The CPI form of the EAC is used.

Observe that the Estimate To Complete (ETC) and Schedule Performance Index (SPI) converge to 0 and 1, respectively, over time. Also, the Actual Cost (AC) agrees with the various Estimates At Completion (EAC's) at the projected completion date.

Next, the %EVA_TASK_METRICS macro is used to show an activity-level view of the progress of the project.

    %eva_task_metrics(
        activity=id,
        plansched=gbsched,
        revisesched=gasched,
        start=start,
        finish=finish,
        budgetcost=gbase,
        actualcost=gact,
        cost=cost,
        spct=spct,
        rate=rate,
        timenow='15SEP04'd,
        aggregate=Y
    );
 

The AGGREGATE= parameter is specified in order to roll up the values with respect to the project hierarchy. The output from this macro is shown in Figure 9.2.9.

Output 9.2.9: %EVA_TASK_METRICS: Metrics by Activity

Earned Value Analysis by Activity as of September 15, 2004 Obs Activity WBS Code PV EV AC CV CV% SV SV% CPI SPI 1 Build House 0 20320.00 10320.00 12840.00 -2520.00 -24.42 -10000.00 -49.21 0.80 0.51 2 Landscaping 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 . . 3 Drainage 0.01 0.00 0.00 0.00 0.00 0.00 0.00 0.00 . . 4 Wiring 0.02 665.00 0.00 0.00 0.00 0.00 -665.00 -100.00 . 0.00 5 Plumbing 0.03 2165.00 1050.00 1050.00 0.00 0.00 -1115.00 -51.50 1.00 0.48 6 Foundation 0.04 7850.00 6860.00 9380.00 -2520.00 -36.73 -990.00 -12.61 0.73 0.87 7 Roofing 0.05 9640.00 2410.00 2410.00 0.00 0.00 -7230.00 -75.00 1.00 0.25 8 Flooring 0.06 0.00 0.00 0.00 0.00 0.00 0.00 0.00 . . 9 Heat & Ventilation 0.07 0.00 0.00 0.00 0.00 0.00 0.00 0.00 . . 10 Plaster 0.08 0.00 0.00 0.00 0.00 0.00 0.00 0.00 . . 11 Brickwork 0.09 0.00 0.00 0.00 0.00 0.00 0.00 0.00 . . 12 Paint 0.10 0.00 0.00 0.00 0.00 0.00 0.00 0.00 . . 13 Finish Grading 0.00.0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 . . 14 Walks & Landscape 0.00.1 0.00 0.00 0.00 0.00 0.00 0.00 0.00 . . 15 Gutters & Downspouts 0.01.0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 . . 16 Storm Drains 0.01.1 0.00 0.00 0.00 0.00 0.00 0.00 0.00 . . 17 Initial Wiring 0.02.0 665.00 0.00 0.00 0.00 0.00 -665.00 -100.00 . 0.00 18 Kitchen Fixtures 0.02.1 0.00 0.00 0.00 0.00 0.00 0.00 0.00 . . 19 Finish Electrical 0.02.2 0.00 0.00 0.00 0.00 0.00 0.00 0.00 . . 20 Finish Carpentry 0.02.3 0.00 0.00 0.00 0.00 0.00 0.00 0.00 . . 21 Rough Plumbing 0.03.0 1115.00 0.00 0.00 0.00 0.00 -1115.00 -100.00 . 0.00 22 Basement Plumbing 0.03.1 1050.00 1050.00 1050.00 0.00 0.00 0.00 0.00 1.00 1.00 23 Finish Plumbing 0.03.2 0.00 0.00 0.00 0.00 0.00 0.00 0.00 . . 24 Excavate & Footers 0.04.0 5330.00 5330.00 6590.00 -1260.00 -23.64 0.00 0.00 0.81 1.00 25 Pour Foundation 0.04.1 1530.00 1530.00 2790.00 -1260.00 -82.35 0.00 0.00 0.55 1.00 26 Pour Basement 0.04.2 990.00 0.00 0.00 0.00 0.00 -990.00 -100.00 . 0.00 27 Finish Roof 0.05.0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 . . 28 Frame & Roof 0.05.1 9640.00 2410.00 2410.00 0.00 0.00 -7230.00 -75.00 1.00 0.25 29 Varnish Floor 0.06.0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 . . 30 Finish Flooring 0.06.1 0.00 0.00 0.00 0.00 0.00 0.00 0.00 . .

Output 9.2.10: %EVA_TASK_METRICS: Metrics by Activity (Continued)

Obs Activity WBS Code PV EV AC CV CV% SV SV% CPI SPI 1 Build House 0 20320.00 10320.00 12840.00 -2520.00 -24.42 -10000.00 -49.21 0.80 0.51 2 Landscaping 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 . . 3 Drainage 0.01 0.00 0.00 0.00 0.00 0.00 0.00 0.00 . . 4 Wiring 0.02 665.00 0.00 0.00 0.00 0.00 -665.00 -100.00 . 0.00 5 Plumbing 0.03 2165.00 1050.00 1050.00 0.00 0.00 -1115.00 -51.50 1.00 0.48 6 Foundation 0.04 7850.00 6860.00 9380.00 -2520.00 -36.73 -990.00 -12.61 0.73 0.87 7 Roofing 0.05 9640.00 2410.00 2410.00 0.00 0.00 -7230.00 -75.00 1.00 0.25 8 Flooring 0.06 0.00 0.00 0.00 0.00 0.00 0.00 0.00 . . 9 Heat & Ventilation 0.07 0.00 0.00 0.00 0.00 0.00 0.00 0.00 . . 10 Plaster 0.08 0.00 0.00 0.00 0.00 0.00 0.00 0.00 . . 11 Brickwork 0.09 0.00 0.00 0.00 0.00 0.00 0.00 0.00 . . 12 Paint 0.10 0.00 0.00 0.00 0.00 0.00 0.00 0.00 . . 13 Finish Grading 0.00.0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 . . 14 Walks & Landscape 0.00.1 0.00 0.00 0.00 0.00 0.00 0.00 0.00 . . 15 Gutters & Downspouts 0.01.0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 . . 16 Storm Drains 0.01.1 0.00 0.00 0.00 0.00 0.00 0.00 0.00 . . 17 Initial Wiring 0.02.0 665.00 0.00 0.00 0.00 0.00 -665.00 -100.00 . 0.00 18 Kitchen Fixtures 0.02.1 0.00 0.00 0.00 0.00 0.00 0.00 0.00 . . 19 Finish Electrical 0.02.2 0.00 0.00 0.00 0.00 0.00 0.00 0.00 . . 20 Finish Carpentry 0.02.3 0.00 0.00 0.00 0.00 0.00 0.00 0.00 . . 21 Rough Plumbing 0.03.0 1115.00 0.00 0.00 0.00 0.00 -1115.00 -100.00 . 0.00 22 Basement Plumbing 0.03.1 1050.00 1050.00 1050.00 0.00 0.00 0.00 0.00 1.00 1.00 23 Finish Plumbing 0.03.2 0.00 0.00 0.00 0.00 0.00 0.00 0.00 . . 24 Excavate & Footers 0.04.0 5330.00 5330.00 6590.00 -1260.00 -23.64 0.00 0.00 0.81 1.00 25 Pour Foundation 0.04.1 1530.00 1530.00 2790.00 -1260.00 -82.35 0.00 0.00 0.55 1.00 26 Pour Basement 0.04.2 990.00 0.00 0.00 0.00 0.00 -990.00 -100.00 . 0.00 27 Finish Roof 0.05.0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 . . 28 Frame & Roof 0.05.1 9640.00 2410.00 2410.00 0.00 0.00 -7230.00 -75.00 1.00 0.25 29 Varnish Floor 0.06.0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 . . 30 Finish Flooring 0.06.1 0.00 0.00 0.00 0.00 0.00 0.00 0.00 . .

Next, the %EVG_COST_PLOT macro is called to show the Planned Value (PV), Earned Value (EV), Actual Cost (AC), and revised cost plots.

    %evg_cost_plot;
 

The plot is shown in Figure 9.2.11.

Output 9.2.11: %EVG_COST_PLOT,PV,EV,AC and Revised Cost

The %EVG_SCHEDULE_PLOT macro is used to show different estimates of the project completion date.

    %evg_schedule_plot;
 

The plot is shown in Figure 9.2.12.

Output 9.2.12: %EVG_SCHEDULE_PLOT: Estimated Completion Dates

The %EVG_INDEX_PLOT macro is used to graphically display the performance indices for the project.

    %evg_index_plot;
 

The plot is shown in Figure 9.2.13. As in the previous example, the cost performance needs to increase from 0.8 to 1.06 in order to stay within the budget.

Output 9.2.13: %EVG_INDEX_PLOT: CPI,SPI,and TCPI

The Cost and Schedule Variance for the project is shown in Figure 9.2.14 using the following call to the %EVG_VARIANCE_PLOT macro:

    %evg_variance_plot;
 

Output 9.2.14: %EVG_VARIANCE_PLOT: Cost and Schedule Variance

While the Cost Variance is just outside the 10% threshold, the Schedule Variance is significantly outside and should be a warning signal that the project is slipping significantly. The plan called for $20,320 of work to be completed, but only $10,320 has been accomplished so far (roughly 50% of the goal).

Finally, the %EVG_GANTT_CHART macro is used to show a Gantt view of the project along with some metrics by task. In this case, only the Work Breakdown Structure code and Cost Variance (CV) and Schedule Variance (SV) are selected.

    %evg_gantt_chart(
        activity=id,
        plansched=gbsched,
        revisesched=gasched,
        start=start,
        finish=finish,
        timenow='15SEP04'd,
        id=wbs cv sv,
        height=3,
        scale=20
    );
 

The resulting Gantt chart is shown in Figure 9.2.15.

Output 9.2.15: %EVG_GANTT_CHART: Cost and Schedule Variance by Task