In the development of complex systems, a large gap exists between systems engineering activities and domain-level engineering analysis. This gap limits the use of accurate disciplinary and multidisciplinary engineering analysis, resulting in failures to meet system requirements and cost overruns. An integrated toolset was developed that bridges the gap through the integration of a SysML tool and a process integration and design optimization framework. The integrated capability enables engineers to quickly evaluate system configurations using realistic analysis models. This ability was combined with requirements conformance analysis techniques, which automatically highlighted unsatisfied requirements. It allows the design team to rapidly respond to inevitable changes in requirements and gives them the ability to perform continuous analysis, simulation, and trade-studies throughout the design process.