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Software development is not a Jenga game

About the Book

Does developing software feel like you are playing a game of Jenga? Is making a change to your code very complicated? Are you afraid that making this change in your code will break something unexpected elsewhere in the code? If so then that is a clear sign of bad code, bad code will slow you down, not only months from now, but even days from now.

This little book is again content from my blog; infect it is a single blog post from 2011 about a presentation I did in 2009. I like how I can easily send this to team members for them to get a really quick and basic introduciton into the SOLID principles.

About the Author

Mark Nijhof
Mark Nijhof

Mark has worked in the software industry since 2000 during this time he has had many different roles, from Developer, Customer Support, Team Lead till Agile Coach. He currently works as a programmer working with erlang and javascript.

Mark Nijhof

Episode 135

Table of Contents

  • Disclaimer
  • Single Responsibility Principle - SRP
    • Violating SRP
    • The different responsibilities
    • Responsibilities nicely separated
  • Dependency Inversion Principle - DIP
    • Violating DIP
    • Depending on specific implementations
    • Depending on abstractions
  • Open Closed Principle - OCP
    • Closed for modification and open for extension
    • Using the decorator pattern
  • Liskov Substitution Principle - LSP
    • Violating LSP
    • Another Violation of LSP
  • Interface Segregation Principle - ISP
    • Three different usages
    • Specific interfaces for specific use-cases
  • Don’t Repeat Yourself - DRY
  • You Ain’t Gonne Need It - YAGNI
  • Test Driven Design - TDD
  • Clean Code

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