Table of contents : • – Introduction – Systems , which is intended for readers with only a little system background knowledge. • – Chapter 1 – Introduction to CESAM that may be skipped for the first approach. • – Chapter 2 – Why Architecting Systems? Which presents the main motivations of the systems architecting approach and of the CESAM framework. • – Chapter 3 – CESAM Framework that provides an overview of all CESAM concepts. • – Chapters 4 to 7 that present in detail, one after the other, each architectural vision of the CESAM systems modeling framework: • - Chapter 4 – Identifying Stakeholders: Environment Architecture . • - Chapter 5 – Understanding Interactions with Stakeholders: Operational Architecture . • - Chapter 6 – Defining What the System Shall Do: Functional Architecture . • - Chapter 7 – Deciding How the System Shall be Formed: Constructional Architecture . • – Chapter 8 – Taking into Account Failures: Dysfunctional Analysis which discusses the nature of the connection existing between systems architecture and dysfunctional/safety analyses. • – Chapter 9 – Choosing the Best Architecture: Trade-off Techniques that introduces systems architecture prioritization, a key tool for the systems architect. • – Conclusion , which gives some hints to the reader on how to continue the systems architecting journey initiated by this book.