Creating the Rules Composer DC 
To get started, you need to first create a rules composer DC called creditcard_rules.
In the SAP NetWeaver Developer Studio, choose .
In the wizard that appears, expand the Rules Composer node and choose Rules Composer Development Component. Choose Next
In the screen that appears, choose the software component where you want to create the DC.
For example the software component could be MyComponents [demo.sap.com] under the Local Development node. Choose Next.
In the screen that appears, enter creditcard_rules in the Name field and choose Finish.
In the Project Explorer view, you should see the creditcard_rules node.