说明：  This paper is designed to support users of the Rational Software Architect (RSA), Rational Systems Developer (RSD) and Rational Software Modeler (RSM) products (collectively “RSx”), especially those who are interested in applying the modeling guidance found in the Rational Unified Process (RUP® ) to their use of RSx. If you are a user of Rational Software Modeler (RSM) you will find the paper useful but should be aware that some sections reflect capabilities available only in RSA and RSD.