Design Pattern Template

This template helps you implement proven design patterns that solve common software architecture problems. It covers pattern selection, implementation strategies, and best practices for maintainable code.

Sample Prompt

Implement the Observer pattern for a notification system:
- Subject interface for event publishers
- Observer interface for event subscribers
- Concrete implementations for email, SMS, and push notifications
- Thread-safe implementation for concurrent environments
- Event filtering and subscription management
- Example usage in user registration and order processing

What This Template Covers

• Pattern selection criteria for choosing appropriate design patterns
• Implementation strategies with code examples and best practices
• Common variations and adaptations for specific use cases
• Integration approaches for combining multiple patterns effectively
• Testing strategies for pattern-based architectures
• Performance considerations and optimization techniques

Best Practices

1. Understand the problem first before selecting a design pattern
2. Don’t force patterns where simpler solutions would suffice
3. Consider the trade-offs between flexibility and complexity
4. Document pattern usage for team understanding and maintenance
5. Test pattern implementations thoroughly with edge cases
6. Keep patterns simple and avoid over-engineering solutions
7. Consider language idioms when implementing patterns
8. Review with experienced developers to validate pattern choice

When to Use This Template

• Solving recurring design problems in software architecture
• Improving code maintainability and flexibility
• Teaching design patterns to development teams
• Refactoring legacy code with better architectural patterns
• Establishing coding standards and architectural guidelines

The Script

peep design-pattern