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arc42 by Example - Volume 2

Architecture Documentation for Embedded Systems and IoT

Peter Hruschka, Wolfgang Reimesch, and Ivan Kostov

Architecture is still often considered as black art. If you develop large hardware/software systems maybe including mechanical or electrical components, this book is for you. Source Code is not enough to understand complex embedded systems. This is where arc42 as a pragmatic and practical template comes into the game. Read some real-life examples!

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This book contains a couple of examples of System Architecture Documentation based upon the practical, economical, well-established and systematic arc42 approach. It shows how you can document and communicate system architectures (i.e. architecture of hardware/software systems).

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Author

About the Authors

Peter Hruschka

Dr. Peter Hruschka is co-founder and enthusiastic user of the (open source) req42 documentation template for requirements communication and documentation, as well as co-founder of the corresponding arc42 template for software and systems architects.

He is also a founding member of the International Requirements Engineering Board (IREB e.V.) and helped creating foundation and advanced level curricula for the certification of Business Analysts and Requiremetns Engineers worldwide.

Peter is a principal of the Atlantic Systems Guild, an international think tank that has influenced the systematic development of IT systems through numerous publications and presentations.

He lives betweeen Aachen, Germany and his holiday home in Austria with his wife Monika. When not working, he can usually be found in the most beautiful parts of the world, trying to hit little white balls into holes that are way too far away and way too small.

E-mail: peter@systemsguild.com or hruschka@b-agile.de 

Wolfgang Reimesch

Ivan Kostov

Contents

Table of Contents

Preface

  1. Acknowledgement
  2. Conventions
  3. Disclaimer
  4. I. Introduction
  5. I.1. What is arc42?
  6. I.2. Why this book?
  7. I.3. What this book is not
  8. I.4 Overview of Examples
  9. II. Octopus

II.1. Introduction and Goals

  1. 1.1 Requirements Overview
  2. 1.2. Quality Goals
  3. 1.3 Stakeholders

II.2. Constraints

  1. 2.1. Technical Constraints
  2. 2.2. Organizational Constraints

II.3. Scope and Context

  1. 3.1 Business Context
  2. 3.2 Technical Context

II.4. Solution Strategy

II.5. Building Block View

  1. 5.1 Front-end Application and Back-end Application
  2. 5.2 Analysis

II.6. Runtime View

  1. 6.1 Reading Values
  2. 6.2 Configuration Setting

II.7. Deployment View

  1. 7.1 Wireless Version
  2. 7.2 Wired Version

II.8. Crosscutting Concepts

  1. 8.1 Software Updates
  2. 8.2 Software Modularization
  3. 8.3 REST

II.9. Architecture Decisions

II.10. Quality Scenarios

II.11. Risks and Technical Debts

II.12. Glossary

  1. III. Traffic Pursuit Unit (TPU)

III.1. Introduction

  1. 1.1 Requirements
  2. 1.2 Quality Goals
  3. 1.3 Stakeholders

III.2. Architectural Constraints

III.3. Scope and Context

  1. 3.1 Business Context
  2. 3.2 Technical Context

III.4 Solution Strategy

III.5. Building Block View

  1. 5.1 White Box of TPU
  2. 5.2 White Boxes Level 2
  3. 5.3 White Boxes Level 3

III.6. Runtime View

  1. 6.1 Processing and Propagation of Measuring Data

III.7. Deployment View

  1. 7.1 Deployment Level 1
  2. 7.1 Deployment Level 2

III.8. Crosscutting Concepts

  1. 8.1 Domain Entity Model
  2. 8.2 Event Handling

III.9. Architecture Decisions

III.10. Quality Requirements

  1. 10.1 Quality Tree
  2. 10.2 Quality Scenarios

III.11. Risks and Technical Debts

III.12. Glossary

  1. The Authors
  2. Further Reading

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