Use this dialog box to execute a part eco-footprint calculation for a specific revision of a part. It is the effective date that controls which revision to base the calculations on, i.e. the revision that is valid for the effective date entered will be used for the calculation. This means that the calculation will blow through the entire structure and use the revision valid for the effective date for both the top part and the sub-assemblies. You can also select which Struct Alt and Rout Alt to take into consideration in the calculation, but note that it is only for the top part and not its sub-assemblies. When executing a calculation a Struct Alt * and Rout Alt * is always used for all sub-assemblies.