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Software and Systems Architecture in Action by Raghvinder S. Sangwan

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Chapter 1

Architecture and Its Significance

1.1 Introduction

A system is a set of elements so connected or related that they perform a unique function that cannot be performed by the elements alone. The picture of a modern aircraft in Figure 1.1. illustrates this point. The aircraft has many constituent parts, but none of these parts by itself is capable of flight. Only when put together in a particular way do they enable an aircraft to fly.

Figure 1.1.

Image of Which part of the airplane flies

Which part of the airplane flies?

We can examine other kinds of systems and make similar observations. A corporation is a social system that produces goods and services that individuals ...

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