The purpose of this wiki is to collect software development principles. Just like common solution schemes to recurring problems are documented using patterns, common assessment rules telling good solutions from bad ones, can be described using principles. So principles are another form of experience reuse. There are dozens and maybe hundreds of such principles, some of which are described, examined, discussed, and interconnected in this wiki.

The following pages describe the idea in more detail:

• Principles
• Principle Languages
• Using Principles in the Plan-Driven World
• Using Principles in the Agile World
• Describing Principles

This wiki is about principles. You may have a look at the full list or start with one of the following:

• Keep It Simple, Stupid (KISS)
• Generalization Principle
• Single Responsibility Principle (SRP)
• Model Principle
• Low Coupling
• High Cohesion
• Don't Repeat Yourself (DRY)
• ...

Several related principles are grouped into principle collections some of which form principle languages:

• OOD Principle Language

• SOLID, GRASP, ...

Each principle belongs to one or more contexts:

• Object-Oriented Design

Some terms shall be used consistently throughout the wiki. The glossary lists and defines them:Principle, principle language, module, ...

This wiki uses the DokuWiki software. For information on how the wiki markup (some variation of markdown) works, see the syntax page.