The document discusses building a system engineering workbench to manage complex systems. It recommends using standards like SysML and UML for system definition, but also developing custom domain-specific languages when needed. The workbench should provide links between the system model, requirements, code, performance, safety and quality domains. Data and tools from different domains can be integrated using Eclipse plugins, and standards like EMF and CDO enable sharing models between teams. Process integration and handling large amounts of data are identified as areas for future work.