Book Image

arc42 by Example

By : Dr. Gernot Starke, Michael Simons, Stefan Zörner, Ralf D. Müller
Book Image

arc42 by Example

By: Dr. Gernot Starke, Michael Simons, Stefan Zörner, Ralf D. Müller

Overview of this book

When developers document the architecture of their systems, they often invent their own specific ways of articulating structures, designs, concepts, and decisions. What they need is a template that enables simple and efficient software architecture documentation. arc42 by Example shows how it's done through several real-world examples. Each example in the book, whether it is a chess engine, a huge CRM system, or a cool web system, starts with a brief description of the problem domain and the quality requirements. Then, you'll discover the system context with all the external interfaces. You'll dive into an overview of the solution strategy to implement the building blocks and runtime scenarios. The later chapters also explain various cross-cutting concerns and how they affect other aspects of a program.
Table of Contents (9 chapters)
Free Chapter
1
Acknowledgements
8
VII - macOS Menu Bar Application

I - Introduction

This chapter explains the following topics:

  • What is arc42?
  • Why this book?
  • What this book is not!
  • An overview of examples
  • A table of arc42 sections

This book contains several examples of Software Architecture Documentation based upon the practical, economical, well-established, and systematic arc42 approach.

It shows how you can communicate about software architectures, but it does not show you how to develop or implement systems!

I.1 What is arc42?

arc42 is a template for architecture documentation.

It answers the following two questions in a pragmatic way, but can be tailored to your specific needs:

  • What should we document/communicate about our architecture?
  • How should we document/communicate it?

Figure 1.1 gives you the big picture: it shows a (slightly simplified) overview of the structure of arc42:

Figure 1.1: Structure of arc42

Compare arc42 to a cabinet...