Consistently following good principles is important to good code. This means applying coding principles whether or not a project is rapidly approaching an important deadline.

Principles

• Architectural Agility
• Boy Scout Rule
• Dependency Inversion
• Don’t Repeat Yourself
• Encapsulation
• Explicit Dependencies
• Hollywood
• Interface Segregation
• Inversion of Control
• Keep It Simple
• Least Astonishment, Principle of
• Liskov Substitution
• Make Illegal States Unrepresentable
• Once and Only Once
• Open-Closed
• Parse, Don’t Validate
• Persistence Ignorance
• Progressive Disclosure
• Separation of Concerns
• Single Responsibility
• SOLID
• Stable Dependencies
• Tell, Don’t Ask
• Tolerance for Imperfection
• YAGNI

Lean Software Development

Lean Software Development adapts the principles of lean manufacturing to software. It was popularized by Mary and Tom Poppendieck in their book Lean Software Development: An Agile Toolkit.

• Eliminate Waste
• Build in Quality
• Amplify Learning
• Delay Commitment (Last Responsible Moment)
• Deliver Fast
• Respect People
• Optimize the Whole

Learn More

• Email Course: SOLID Principles