System Design

🌏 閱讀中文版本 Have you experienced this scenario: Your product manager says “Support a new discount rule,” and suddenly you’re modifying OrderService, DiscountService, PromotionService, PricingService, and CustomerService. By the time you’re done, you realize this “simple” requirement touched 5 different modules. This isn’t an edge case. It’s a symptom of poor system design. Domain-Driven Design (DDD) … Read more

“探討領域驅動設計（DDD）如何解決複雜系統中的業務邏輯散落問題。從聚合根、限界上下文、領域事件等核心概念，到後端工程師、產品經理、系統架構師的三角視角，理解 DDD 如何簡化而非複雜化系統設計。”