1. Systems, Systems Analysis, and Systems Engineering2. Concurrent and Simultaneous Engineering3. Software and Computer-Aided Systems4. Reliability Engineering5. Maintainability Engineering and Maintenance6. Human Factors, Safety, and Security Engineering7. Logistics, Supply Chain Management and Supportability8. Production, Manufacturing, Quality Control, and Assurance9. Operations Research and Operations Management10. Engineering Economy and Life-Cycle Cost Analysis11. Management and Supporting Areas