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Industrial engineering has many sub-disciplines, the most common of which are listed below. Although there are industrial engineers who focus exclusively on one of these sub-disciplines, many deal with a combination of them such as Supply Chain and Logistics, and Facilities and Energy Management.^[11][12]

1. Facilities Engineering & Energy Management

2. Financial Engineering

3. Energy Engineering

4. Human Factors & Safety Engineering

5. Information Systems Engineering & Management

6. Manufacturing Engineering

7. Operations Engineering & Management Main articles: Operations engineering and Operations management

8. Operations Research & Optimization

9. Policy Planning

10. Production Engineering Main article: Production Engineering

11. Quality & Reliability Engineering

12. Supply Chain Management & Logistics Main articles: Supply-chain management and Logistics

13. System Analysis

14. Systems Engineering

15. Systems Simulation

16. Related Disciplines

17. Organization Development & Change Management

18. Behavioral Economics Main article: Behavioral economics