1. Figure 3.1 Early system advanced planning and architecting.

2. Figure 3.2 Major steps in the system requirements definition process.

3. Figure 3.3 System operational requirements (distribution and utilization).

4. Figure 3.4 Typical aircraft operational profiles.

5. Figure 3.5 Top-level system maintenance and support infrastructure

6. Figure 3.6 Mission profile.

7. Figure 3.7 Program schedule.

8. Figure 3.8 Communication network (typical).

9. Figure 3.9 Basic inventory requirements over the system life cycle.

10. Figure 3.10 Projected passenger-handling requirement

11. Figure 3.11 Program schedule.

12. Figure 3.12 Community healthcare infrastructure.

13. Figure 3.13 Multiple systems (system-of-systems).

14. Figure 3.14 System operational and maintenance flow.

15. Figure 3.15 Major levels of maintenance.

16. Figure 3.16 System maintenance and repair policy.

17. Figure 3.17 Prioritization of technical performance measures (TPMs).

18. Figure 3.18 Modified house of quality (HOQ).

19. Figure 3.19 The traceability of requirements through a “family of houses.”

20. Figure 3.20 System functional breakdown.

21. Figure 3.21 Functional block diagram expansion (partial).

22. Figure 3.22 Health care functional flow diagram (extension of Figure 3.12)

23. Figure 3.23 Progression from the “need” to the functional analysis.

24. Figure 3.24 Functional interfaces in a system-of-systems (SOS) configuration.

25. Figure 3.25 The functional breakdown of the system into components.

26. Figure 3.26 Trade-off analysis process.

27. Figure 3.27 Type A system specification format (example).