Earned Preferences

Use this dialog box to select the options for calculating earned value.

Contents

Note: See the Using the Selected and Secure Check Boxes topic for information on how to use the Selected and Secure boxes of these options.

Field	Description
Use an adjusting entry to remove Earned from deleted budget	Select this option to instruct Cobra to insert a reversing entry into the current period to reconcile earned value to zero for resources that have been deleted. Otherwise, Cobra deletes the earned value for resources that do not have an adjusting entry when budget is deleted. Cobra uses the value of this option if you run the Calculate Progress API process and do not include the UseAdjustingEntry setting in the API script. Cobra displays an error if the Secure check box for this option is selected and the value of this setting does not match the value of the UseAdjustingEntry setting in the API script.
Force the SPI of an apportioned resource to match source SPI	Select this option to ensure that the earned value for the apportioned items receives the same SPI as the base. Cobra uses the following formula: ApportionedBCWP = ApportionedCumtoDate x (BaseCumBCWP / BaseCumtoDateBCWS) This option is useful when selecting the earned value Method of Hours SPI, where earned value is calculated such that the SPI of the hours is equal to the SPI of the dollars.
Earned by:	This field provides you with four options for calculating earned value. Use the drop-down list in the Selected column to select a method for calculating earned value. Budget: Select this option to instruct Cobra to summarize the budget across all periods before applying the progress technique. Earned value is calculated by moving through the time-phase table up to the time of the calculation, earning the first result and associated budget. Dollars: Select this option to instruct Cobra to calculate earned value based on total budgeted currency. The currency earned is prorated to arrive at the remainder of the resource costs. Hours SPI: Select this option to instruct Cobra to calculate earned by backing into the currency amount of earned value such that the SPI based on the hours is the same for both hours and the total currency value. Time: Select this option to instruct Cobra to calculate earned value based on a percentage of the work package's time-phased budget. For example, a work package that is 50% complete earns the portion of the budget that corresponds to the first half of the work package's duration. Cobra uses the value of this option if you run the Calculate Progress API process and do not include the EVMethodId setting in the API script. Cobra displays an error if the Secure check box for this option is selected and the value of this setting does not match the value of the EVMethodId setting in the API script.
Use apportionment mappings defined on the subprojects	This option is only available for master projects.
	Select this option to instruct Cobra to use apportionment mappings available in the subprojects when calculating earned value for a master project. If this option is not selected, apportionment mappings available for the master project are used instead.