Cost curves determine the proportion of money to be expended in a certain period. You can create custom cost curve tables to apply to your progressed work, based on actual costs and schedule. The default cost curve assigned to a cost item is Linear.
You can update the cost curve in the following ways:
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Cost curve column of the Schedule data block.
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When performing a contract adjustment. The budget time phasing option must be enabled in settings.
When the budget is locked, it sets the current budget and original budget equal to the current estimate. The cost curve can only be changed using a change order.
Manage cost curve tables
Add a custom cost curve table
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Click the Add icon, and then enter the following:
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Description of cost curve (required)
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Number of data points (required)
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Value percentages which must equal to 100%
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Click OK to save.
View a cost curve table
Select a cost curve table, and then click the View icon. In view mode, you can only edit a cost curve table that is not yet assigned to any cost items.
Delete a cost curve table
To delete a cost curve table, select a cost curve table, and then click the Delete icon. You can only delete cost curve tables not yet assigned to cost items.