Book Image

Systems Engineering Demystified, Second Edition - Second Edition

By : Jon Holt
4 (1)
Book Image

Systems Engineering Demystified, Second Edition - Second Edition

4 (1)
By: Jon Holt

Overview of this book

Systems engineering helps in developing and describing complex systems. Written by an internationally-recognized systems engineering expert, this updated edition provides insight into elements to consider when designing a complex system that is robust and successful. The latest edition covers the new approaches of Model-Based Systems Engineering (MBSE) and its deployment techniques using the Trinity approach. You will learn about the system engineering life cycle and processes to implement. Effective systems can be built only when the system is designed with close attention to detail, meaning each aspect of the system is recognized and understood before the system is built. The book explains in great detail, different system models and visualization techniques, with a focus on SysML, to help you visualize a system in the design phase. You will also learn various verification and validation techniques to ensure your system design is ready to be implemented. The book ends with key management processes, systems engineering best practices, and guidelines, with a new section on effective approaches based on the author’s impressive 30 years of experience in the field. By the end of this systems engineering book, you'll be able to apply modern model-based systems engineering techniques to your own systems and projects.
Table of Contents (20 chapters)
1
Part I: Introduction to Systems Engineering
4
Part II: Systems Engineering Concepts
8
Part III: Systems Engineering Techniques
14
Part IV: Next Steps
18
Other Books You May Enjoy
19
Index

Life Cycle and Processes

The Needs modeling that has been discussed in this chapter is carried out during a typical development Life Cycle. With this in mind, consider the following development Life Cycle Model, which was introduced in Chapter 4, Life Cycles.

Figure 6.27: Example development Life Cycle Model

The diagram in Figure 6.27 shows an example development Life Cycle that is visualized using a SysML sequence diagram. The stages in this Life Cycle Model are those from ISO 15288 and the execution of the stages is a simple linear sequence.

The obvious place for the Needs modeling to occur is during the first stage in the diagram, Concept. This is where the majority of the Needs modeling will take place, but the Needs will also be revisited throughout the entire Life Cycle as Needs will change as time goes on and, very importantly, some of the Contexts associated with the Needs may change.

The approach to Needs modeling must map to best practices and this is...