When you open a component in aPriori and perform the initial costing, an initial cost scenario for the component is created and displayed on a component scenario tab and within the component’s Scenarios folder on the Navigation pane. The initial scenario is shown with the name Initial. (You can change the default name that aPriori uses for initial scenarios with Tools > User Preferences > Default Scenario Name

As you make changes to the component’s geometry or manufacturing process, you can save the changes in multiple cost scenarios.