What We DoThe SEI helps advance software engineering principles and practices and serves as a national resource in software engineering, computer security, and process improvement. We work closely with defense and government organizations, industry, and academia to continually improve software-intensive systems. Our core purpose is to help organizations improve software engineering capabilities and develop or acquire the right software, defect free, within budget and on time, every time.We in the SEI's Model-Based Engineering initiative are developing architecture-centric, model-based engineering (MBE) theories and practices for use in the development of large-scale, complex, safe