Defining Derivation Rules 

Use

Using the derivation rules the view and thinking of the planner is transferred to the costing items of the unit costing. This is where you enter the resources needed for the planning.

If the costing model is to offer a choice between several resources of the same sort, enter all of the resources and use Activation to regulate which resource in the planning case is entered in the cost estimate. You define the activation via the prompt for a particular specification of the related characteristic, for example if characteristic LENGTH = 10, the line with resource (material) A10 is used, and if LENGTH = 20 the line with resource A20 is used.

To determine the quantity of the respective resource you use a characteristic, for example, the characteristic NUMBER OF WORKING HOURS for an internal activity item.

Prerequisites

You have created a costing model.

Procedure

You can only define the derivation rules (of the template) for the costing model when you define the model.
  1. Click on the node in the definition area of the costing model.

The screen Create template <NAME OF COSTING MODEL> appears. The template automatically receives the name of the costing model and is created in a specific environment, depending on the planning object.
  1. Enter the costing items required for the planning object. For more information, see Templates for Easy Cost Planning.
  2. Go back and save the template.