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Advanced Design Patterns

✅ Purpose and Intent​

The Advanced section goes beyond understanding individual design patterns and focuses on enhancing practical design skills through the lenses of
pattern combinations, comparative decision-making, and real-world applicability.

It systematically organizes knowledge that supports effective design decisions in real projects, including:

  • The effects of combining patterns structurally
  • Key differences and trade-offs between similar patterns
  • Practical usage of patterns to solve common implementation challenges

✅ Chapter Overview and Roles​

🔷 Combining Design Patterns​

  • Purpose: To highlight design benefits that emerge when two patterns are intentionally combined—benefits not achievable by either alone.
  • Content: Illustrated with class diagrams and code examples, this chapter emphasizes reusability, separation of concerns, and structural flexibility.

🔷 Comparing Similar Patterns​

  • Purpose: To clarify the distinctions between structurally or conceptually similar patterns and guide their appropriate usage.
  • Content: Includes 10 comparison pairs (e.g., Strategy vs Template Method, Adapter vs Bridge), with structured charts and explanation of decision factors.

🔷 Practical Pattern Applications​

  • Purpose: To provide actionable solutions for common development issues—such as difficulty testing or implementing Undo/Redo—by applying multiple patterns in combination.
  • Content: Each case starts from a real-world problem and shows how to resolve it using well-structured and reusable pattern combinations.

✅ Goal: Elevating Your Design Skillset​

  • Systematically strengthen knowledge from three perspectives: selection, composition, and application of design patterns
  • Gain a mindset focused on structural intent and reusability, not just code improvement
  • Develop skills that contribute to long-term architectural quality, including design reviews and shared infrastructure design

Through this section, we aim to help you move from knowing design patterns to mastering their practical use,
enabling you to make confident, structured design decisions in real-world engineering contexts.