🌏 閱讀中文版本 By: rajatim Abstract: We celebrate “agile” and “failing fast,” but we seldom talk about the cost of failure. This article explores an ongoing paradigm shift in product development: moving from “Hypothesis-Driven Development” to a “Continuously Evolving Intelligence” formed by the synergy of DevOps, PM, and AI. This is not just a process optimization; … Read more
本文探討一個產品開發的範式轉移：從被動驗證假說，演進為由 DevOps、PM 與 AI 構成的「持續進化智慧」體。文章將闡述這個新範式如何重塑技術人員的價值，並提供一個可執行的架構藍圖，將團隊從功能實現者，升級為自我進化系統的建築師。
DDD refactoring guide: migrate business validation to aggregates using event-driven design. Learn root causes, implementation steps, and pitfalls for architects.
DDD 架構改造實戰完全指南。從根本原因分析、實施方案設計到三步執行方法的完整講解。教你將業務驗證邏輯從臃腫的 Service 層遷移至自驗證聚合根，透過事件驅動架構解耦複雜的跨模組耦合問題。非常適合資深工程師與架構師深度參考與學習應用實踐。
🌏 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。”
Deep dive into cloud architecture resilience from AWS US-EAST-1’s 15-hour outage: Multi-AZ vs. Multi-Region architecture selection, pragmatic cost-benefit analysis (2 AZ ROI reaches 961%), enterprise-grade disaster recovery frameworks, and real-world architecture patterns from Netflix, Airbnb, and other global companies.
從 AWS US-EAST-1 區域 15 小時服務中斷事件，深度分析雲端架構韌性設計：Multi-AZ 與 Multi-Region 架構選擇、務實成本效益評估（2 個 AZ ROI 達 961%）、企業級容災演練框架，以及 Netflix、Airbnb 等全球企業的實戰架構案例。
On October 20, 2025, AWS US-East-1 experienced one of the top three largest outages in history, affecting 6.5 million users and 1000+ companies. This article provides an architect’s perspective on the outage impact, technical root causes, and complete disaster recovery strategies across five levels: Multi-AZ, Multi-Region, Multi-Cloud, and Hybrid Cloud, including cost analysis, real-world cases, and ROI calculations.
2025年10月20日，AWS US-East-1 區域發生史上前三大規模當機事件，影響 650萬用戶與 1000+ 家企業。本文從架構師視角深度分析當機影響範圍、技術根因，並提供 Multi-AZ、Multi-Region、Multi-Cloud、Hybrid Cloud 五個層級的完整容災策略，包含成本分析、實際案例與 ROI 計算。