Communicating Software Architectures with arc42
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Communicating Software Architectures with arc42

Lean, effective & painless documentation

About the Book

This practical guide shows how you can effectively apply the practical and well-proven arc42 template to design, develop and document your software architecture. It contains more than 200 concrete and pragmatical tips how to improve your architecture communication and documentation:

  • immediately actionable tips
  • arc42 for practical software development
  • effective communication and documentation of software architectures
  • arc42 to construct, design and implement new systems
  • arc42 to document existing system
  • arc42 for { large | medium | small } systems
  • tools for arc42: wikis, asciidoc, modeling tools an others
  • frequently asked questions around arc42

About the Authors

Gernot Starke
Gernot Starke

Gernot Starke (innoQ Fellow) is a long-term traveller in IT-country and has been consulting mid- to large enterprises on methodical software engineering, -development and -architecture. He authored several books on software architecture, patterns and etiquette of software development. He received a PhD in computer science from J.Kepler University in Linz in 1995.

Gernot co-founded arc42 way back in 2005 and has since then applied it successfully on several IT-systems in finance, logistics, telecommunications, automotive and the public sector.

He is founder and committer of the architecture improvement method (, the systematic approach to software modernization and evolution. Back in 2009, Gernot co-founded the International Software Architecture Qualification Board (iSAQB e.V.), a non-profit organization for the advancement of software architecture education and training.

In some former life he worked as technical director for the Object Reality Center Cologne (ORC), a venture of Sun Microsytems Inc.

Gernot lives in Cologne, Germany with his wife and two kids.

Peter Hruschka
Peter Hruschka

Peter Hruschka (Principal of the Atlantic Systems Guild) is an avid advocat for pragmatic software engineering techniques. As trainer, consultant and book author he is working since more than 40 years with large and small IT-companies all over the world, often on embedded real-time systems in the automotive, medical or telecom industry as well as data warehouse projects in banking and manufacturing.

He received a PhD in computer science from Technical University of Vienna. Peter co-founded arc42, the home of the architecture template,  as well as the International Software Architecture Qualification Board (iSAQB e.V.), both non-profit organizations for software architecture and training.

In his former life Peter developed and marketed modeling tools, supporting more than 10000 licensees on all continents.

Peter and his wife live in Aachen, Germany. When they are not working they can be found in beautiful spots trying to hit small white balls into holes that are far away.

Bundles that include this book

2 Books
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Bought separately
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About the Contributors

Andreas Steinbrecher
Andreas Steinbrecher

Cover designed by Andreas Steinbrecher.

Sven Johann
Sven Johann

Sven helped in translating from the German version to English.

Table of Contents

  • Acknowledgments
  • I. Introduction
    • I.1 Basic Principles of arc42
    • I.2 Why This Book
    • I.3 What This Book is NOT
    • I.4 Our Assumptions About You
    • I.5 Quick Navigation
    • I.6 Conventions
  • II. arc42 by Example
    • II.1. Introduction and Goals
    • II.2 Constraints
    • II.3 Context
    • II.4 Solution Strategy
    • II.5 Building Block View
    • II.6 Runtime View
    • II.7 Deployment view
    • II.8 Technical and Crosscutting Concepts
    • II.9 Design Decisions
    • II.10 Quality Scenarios
    • II.11 Risks and technical debt
    • II.12 Glossary
  • III. Fundamentals of Effective Documentation
    • III.1 Documentation Requirements
    • III.2 Fundamental Tips for Documentation
  • IV. Effective use of arc42
    • IV.1 Tips for introduction and goals
    • IV.2 Tips for constraints
    • IV.3 Tips for the context view
    • IV.4 Tips for solution strategy
    • IV.5 Tips for building block view
    • IV.6 Tips for the runtime view
    • IV.7 Tips for deployment view
    • IV.8 Tips for crosscutting concepts
    • IV.9 Tips for architecture decisions
    • IV.10 Tips for quality scenarios
    • IV.11 Tips for risks and technical debt
    • IV.12 Tips for the glossary
  • V. arc42 in Everyday Work
    • V.1 Good Start
    • V.2 arc42 for Existing Systems
    • V.3 arc42 for New Systems
    • V.4 arc42 for Agile Projects
    • V.5 arc42 for Large Scale Systems
  • VI. Tools for arc42
  • VII. Frequently Asked Questions
    • VII.A General questions
    • VII.B Questions on methodology
    • VII.C Questions on arc42 sections
    • VII.D Questions on modeling
    • VII.E Questions on arc42 and agile methods
    • VII.F Questions on tools for arc42
    • VII.G Questions on arc42 and versions / variants
    • VII.H Questions on arc42 and traceability
    • VII.J Questions on managing documentation
    • VII.K Questions on customizing arc42
  • Appendix A: Further References and Resources
  • Appendix B: Also by This Author
  • Appendix C: About Gernot Starke
  • Appendix D: Table of Tips
  • Appendix E: Table of Questions
  • Notes

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