D0：征兆与初步响应 收集问题信息、做初步判断，确认是否需要走 8D。Symptom Recognition & Initial Response,
Collect preliminary data (images, quantities, records) and assess whether to initiate the 8D process.
D1：小组成立 组建具备相关知识背景的跨部门处理小组。 Team Formation: Assemble a cross-functional team with relevant expertise.
D2：问题描述 用 5W2H 方法描述问题现象 Problem Description
是什么（What），为什么Why, 是谁Who， 什么时间When，什么地点Where，有多少HowMuch， 怎么做How。Define the issue using 5W2H:
What (issue), Why (reason), Who (responsible), When (timing), Where (location), How Much (scale), How (process).
产品需求定义的SMART原则。Specific（明确性：目标需清晰可描述），Measurable（衡量性：需有量化数据或质化标准评估）、Attainable（可实现性：通过合理努力可达）、Relevant（相关性：与其他目标逻辑关联）、
Time-based（时限性：设定具体完成期限）Align with the SMART principle for objectives: Specific, Measurable, Attainable, Relevant, Time-bound.
D3：临时遏制措施 为防止问题扩大，及时采取短期控制动作
Interim Containment Actions
暂停，标示，隔离，半成品，库存成品的复检，出货产品处置
Implement short-term controls: pause production, label/isolate defective products, reinspect semi-finished/finished goods, and address shipped products.
D4：根因分析: 分析直接原因与系统性根因。
Root Cause Analysis
关键路径分析
Critical Path Analysis
D5：选择永久对策 针对根因提出长效解决方案，并制定验证计划。
Permanent Corrective Actions
纠正预防措施
Develop long-term solutions targeting root causes and validate plans (e.g., Corrective and Preventive Actions).
D6：实施对策 执行方案并验证效果，确保问题彻底解决。
Implementation & Validation
执行纠正预防措施
Execute solutions
结果验证
verify effectiveness
如果必要，重复D4
repeat D4 if necessary
D7：防止再发 将经验写入流程、作业指导书、培训机制，沉淀进 FMEA 知识库。
Prevention of Recurrence:Institutionalize learnings into processes (SOPs, checklists, training) and update the FMEA knowledge base.
知识资产固化
update the FMEA knowledge base.
D8：团队总结与表彰 复盘问题处理过程，表彰团队，并记录经验教训。
Team Recognition & Closure: Conduct a closure meeting to review outcomes, acknowledge contributions, and document lessons learned.
