Chapter 5

A Systems Approach

The proper and rational design of security architecture is achieved by taking a systems approach. This will ensure that the end result is consistent with the business needs and that the design process is properly executed. The systems approach advocated in this book is based upon well-established systems engineering principles.

In this chapter you will learn about:

  • The meaning of the term ‘systems engineering’;
  • The basic techniques used in a systems approach to simplify complexity, including: subsystems; top-down decomposition, black-box modelling and logical flow analysis;
  • The kinds of behaviour a systems approach implies: good documentation, peer review and good communication;
  • The basic concepts of a systems approach: ...

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