Documentation architecture design and management for equipment projects. Use for: (1) Creating layered doc structure, (2) Determining content placement, (3) Managing change impact, (4) Simplifying redundant content. Triggers (CN): 文件架構、分層設計、文件該放哪、改了要更新哪些、文件太長、高內聚低耦合. Triggers (EN): doc structure, which file, change impact, simplify. Coordinated by: project-coordinator.