Complex sentence: Rational Software Architect is built on the Eclipse open-source software framework and includes capabilities focused on architectural code analysis, C++, and model-driven development (MDD) with the UML for creating resilient applications and web services.
Split into simpler sentences: Rational Software Architect is built on the Eclipse open-source software framework. RSA also includes capabilities focused on architectural code analysis, C++, and model-driven development (MDD) with the UML for creating resilient applications and web services.