Open Workbench User Guide

Baseline Projects

Open Workbench includes fields containing the fundamental calculations used for earned value analysis. These fields are available as discrete items for reporting purposes and you can add them to any view. These fields are used primarily as variables by other calculated fields to produce variance values.

Earned value calculates the following values for every scheduled activity:

Budgeted Cost of Work Scheduled (BCWS)

The budgeted amount to be spent on the project in a given period of time.

Actual Cost of Work Performed (ACWP)

The total direct and indirect cost incurred in performing work during a given period of time.

Budgeted Cost of Work Performed (BCWP)

The percentage of the total budget equal to the percentage of the actual work performed.

These values are used together to determine if work is being performed as planned. The most frequently employed measures are:

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Cost Variance (CV), where CV is equal to BCWP minus ACWP.

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Schedule Variance (SV), where SV is equal to BCWP minus BCWS

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Cost Performance Index (CPI), where CPI is equal to BCWP divided by ACWP.

Use the EVA fields to track work performance to account for cost and schedule variances. For example, Open Workbench computes BCWS using the following formula:

BCWS = (cumulative baseline usage from the start date through the Project as-of date) x (the resource billing rate)

Note: You must baseline your project to attain date or EAC variances.

Set Baselines

Use the Multiple Baselines dialog box to set baselines and to re-baseline your project.

This dialog box lists the baselines that you have already set on the project. When you set a new baseline, its default name is Baseline1 and it is marked as the current baseline. If the project already has a baseline named Baseline1, then when you set a new baseline its name is Baseline2. You can edit the name after you capture the baseline.

Chapter 4: Schedule Projects 73