The Thirty Elements Of Systems Engineering

We come now to a variety of tasks that form the central core of systems engineering and its management. In this book, these tasks are called the thirty elements of systems engineering, and are listed in Exhibit 7.1.

Exhibit 7.1: The Thirty Elements of Systems Engineering

1. Needs/goals/objectives

2. Mission engineering

3. Requirements analysis/allocation

4. Functional analysis/decomposition

5. Architecture design/synthesis

6. Alternatives analysis/evaluation

7. Technical performance measurement (TPM)

8. Life-cycle costing (LCC)

9. Risk analysis

10. Concurrent engineering

11. Specification development

12. Hardware/software/human engineering

13. Interface control

14. Computer tool evaluation and utilization

during Phase A, the analysis and trade studies are more detailed and are carried to a lower hierarchical level.

Figure 7.2. Representative top-level flow for a mission analysis study—Phase A [7.12].

during Phase A, the analysis and trade studies are more detailed and are carried to a lower hierarchical level.

Figure 7.2. Representative top-level flow for a mission analysis study—Phase A [7.12].

Initiate Phase B

Initial version of the shaded items are obtained from the Phase A study and its final report

Select project manager and systems engineer

Initial version of the shaded items are obtained from the Phase A study and its final report

Select project manager and systems engineer

Phase C/D

Figure 7.3. Representative top-level flow for a definition study—Phase B [7.12].

Phase C/D

Figure 7.3. Representative top-level flow for a definition study—Phase B [7.12].

15. Technical data management and documentation

16. Integrated logistics support (ILS)

17. Reliability, maintainability, availability (RMA)

18. Integration

19. Verification and validation

20. Test and evaluation

21. Quality assurance and management

22. Configuration management

23. Specialty engineering

24. Preplanned product improvement (P3I)

25. Training

26. Production and deployment

27. Operations and maintenance (O&M)

28. Operations evaluation/reengineering

29. System disposal

30. Systems engineering management (planning, organizing, directing, and monitoring)

These thirty elements span the overall systems engineering process over the full life cycle of a system. It is an inclusive rather than exclusive interpretation of systems engineering and its management. It is the ''union'' of the set of tasks and activities that have previously been defined as necessary over a system's life cycle. It is not confined only to the systems architecting or synthesis phase and extends to the reengineering of a system, or portions thereof, after it has been in its operations and maintenance phase, possibly for many years. Reengineering has emerged as a critical activity because we cannot, as a general philosophy, afford to scrap many old systems and engage in completely new starts. As we have ''legacy'' software, we also have legacy systems. As we add functionality to older systems, we are not able to completely throw away these older core systems.

With respect to these thirty elements, not only must the CSE master each and every one of them, he or she must also understand the interrelationship between these elements. This is an enormously challenging assignment that requires both a broad and deep commitment to this discipline as well as its supporting knowledge base. Although there are numerous persons involved in some element of the process of systems engineering, a considerably fewer number achieve the level of Chief Systems Engineer (CSE). Such a position is often, but by no means always, a prerequisite to the position of Project Manager (PM), especially for a large program or project.

We now briefly examine each of the thirty elements of systems engineering and its management. The following four chapters provide additional depth for the more important elements. In effect, the following discussion provides a broad overview of all core elements of systems engineering and its management.

Project Management Made Easy

Project Management Made Easy

What you need to know about… Project Management Made Easy! Project management consists of more than just a large building project and can encompass small projects as well. No matter what the size of your project, you need to have some sort of project management. How you manage your project has everything to do with its outcome.

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