To create a new EJB jar file:
The Enterprise JavBean Wizard is displayed. This wizard helps you create an enterprise bean, provide an EJB JAR, and generate a deployment descriptor from the information that you enter into the first four screens of the wizard. It bundles the enterprise bean into the EJB JAR file and prepares it for deployment on the server according to the settings in the generated deployment descriptor.
Once your EJB is created, you will see it added to the application in the tree view on the left side of Deployment Tool.
Already created JARs and EJBs may be added to an application by using the JAR button in the second group of buttons on the tool bar of the primary window of Deployment Tool. Updating and deployment of the application are accomplished using the third set of buttons on the tool bar. Finally, the correctness of the components and files of the application may be checked before deployment by the Verifier Tool.