Book Image

Systems Engineering Demystified

By : Jon Holt
Book Image

Systems Engineering Demystified

By: Jon Holt

Overview of this book

Systems engineering helps us to understand, specify, and develop complex systems, and is applied across a wide set of disciplines. As systems and their associated problems become increasingly complex in this evermore connected world, the need for more rigorous, demonstrable, and repeatable techniques also increases. Written by Professor Jon Holt – an internationally recognized systems engineering expert – this book provides a blend of technical and business aspects you need to understand in order to develop successful systems. You'll start with systems engineering basics and understand the complexity, communication, and different stakeholders' views of the system. The book then covers essential aspects of model-based systems engineering, systems, life cycles, and processes, along with techniques to develop systems. Moving on, you'll explore system models and visualization techniques, focusing on the SysML, and discover how solutions can be defined by developing effective system design, verification, and validation techniques. The book concludes by taking you through key management processes and systems engineering best practices and guidelines. By the end of this systems engineering book, you'll be able to confidently apply modern model-based systems engineering techniques to your own systems and projects.

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Table of Contents (17 chapters)
Preface
Preface
Who this book is for
What this book covers
To get the most out of this book
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Get in touch
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1
Section 1: Introduction to Systems Engineering
Section 1: Introduction to Systems Engineering
Free Chapter
2
Chapter 1: Introduction to Systems Engineering
Chapter 1: Introduction to Systems Engineering
A brief history of systems engineering
Defining systems engineering
The need for systems engineering
Summary
Questions
References
3
Chapter 2: Model-Based Systems Engineering
Chapter 2: Model-Based Systems Engineering
An introduction to MBSE
The evolution of MBSE
Modeling with MBSE
The spoken language – the Systems Modeling Language (SysML)
The domain-specific language – the ontology
Summary
Self-assessment tasks
References
4
Section 2: Systems Engineering Concepts
Section 2: Systems Engineering Concepts
5
Chapter 3: Systems and Interfaces
Chapter 3: Systems and Interfaces
Defining systems
Describing interfaces
Defining the framework
Summary
Self-assessment tasks
References
6
Chapter 4: Life Cycles
Chapter 4: Life Cycles
Defining life cycles
Defining life cycle models
Defining the framework
Summary
Self-assessment tasks
References
7
Chapter 5: Systems Engineering Processes
Chapter 5: Systems Engineering Processes
Understanding process fundamentals
Process concepts
Process modeling
Modeling standards using process modeling
Defining the framework
Summary
Self-assessment tasks
References
8
Section 3: Systems Engineering Techniques
Section 3: Systems Engineering Techniques
9
Chapter 6: Needs and Requirements
Chapter 6: Needs and Requirements
Introducing needs and requirements
Visualizing needs using different SysML diagrams
Life cycle and processes
Defining the framework
Summary
Self-assessment tasks
References
10
Chapter 7: Modeling the Design
Chapter 7: Modeling the Design
Defining designs
Complying with best-practice processes
Defining the framework
Summary
Self-assessment tasks
References
11
Chapter 8: Verification and Validation
Chapter 8: Verification and Validation
Defining testing concepts
Modeling verification and validation
Complying with best-practice processes
Defining the framework
Summary
Self-assessment tasks
References
12
Chapter 9: Methodologies
Chapter 9: Methodologies
Introducing methodologies
Introducing SAFe
Introducing OOSEM
Methodologies and MBSE
Summary
Self-assessment tasks
References
13
Chapter 10: Systems Engineering Management
Chapter 10: Systems Engineering Management
Introducing management
The project planning process
The decision management process
The project assessment and control process
The risk management process
The information management process
The configuration management process
The measurement process
The quality assurance process
Summary
Self-assessment tasks
14
Section 4: Next steps
Section 4: Next steps
15
Chapter 11: Best Practices
Chapter 11: Best Practices
Introducing key standards
Introducing key guidelines
Organizations
Summary
16
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Defining life cycle models

Life cycles are defined by identifying a set of stages that describe the evolution of an entity. A life cycle is a structural construct. A life cycle model, on the other hand, is a behavioral construct that describes the execution of a life cycle, specifically the order of execution of the stages.

In terms of visualizing the various life cycle models, as the emphasis is on the order of the execution of the stages that comprise the life cycle, a SysML sequence diagram will be used. This is good for the consistency of the overall model but can lead to diagrams that differ in appearance compared to some of the traditional visualizations of life cycle models. This is because most life cycle models are visualized using non-standard, ad hoc notations, which leads to a set of very different-looking and difficult-to-compare diagrams. This illustrates one of the benefits of using a standard notation, such as SysML, as all of the different life cycle models may...

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