|  | | Find technical developer content and resources for IBM® Rational® Modeler™.
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 |  |  IBM Rational Modeler Introducing IBM Rational Modeler, a free UML 2.1-based software
design tool. Designed to remove acquisition cost barriers by a key author and
supporter of UML, this free modeling product allows users to leverage the benefits
of improved communication by using a standard graphical language to specify,
visualize and document systems and software designs. Offered at no charge, IBM
Rational Modeler allows users to increase their productivity and shorten design cycles. More |  |
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   | What's New in IBM Rational Rhapsody, Version 7.5 Get an overview of the new features in IBM Rational Rhapsody that you can use to develop software in real-time and embedded systems. You can use these features even for resource-constrained targets, such as microcontrollers, and you can use the SysML and UPDM features to describe systems better. |  |   |
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