**5. Existing SOSE MS&A models and tools**

This section provides a summary of existing MS&A models and tools for supporting pre-award phase of US DoD acquisition life cycle. Section 5.1 focuses on the models and tools for SOSE CONOPS assessment, Section 5.2 for system architecture assessment, and Section 5.3 on space systems acquisition strategy development and optimization using game theoretic and multi-criteria decision support system.
