IBM Rational System Architect is an enterprise architecture tool, that you can use to visualize, analyze, and communicate all aspects of an enterprise architecture by applying industry-standard frameworks, notations, and methods. After you capture and understand an architecture, you can plan and implement its future improvements intelligently.
Visual Paradigm is a UML tool. The tool is designed for a wide range of users including software engineers, system analysts, business analysts and system architects, or for anyone who is interested in reliably building large-scale software systems using an object-oriented approach. In addition, Visual Paradigm supports the latest standards of UML notation.
