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wiki/concepts/Emergency-Change.md
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title: "Emergency Change"
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type: concept
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tags: [Change-Management, ITSM, Incident-Response, CAPA]
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last_updated: 2026-04-14
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---
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## Definition
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Emergency Change(紧急变更)是为了缓解事故(Incident)并尽快恢复服务到期望状态而需要立即执行的变更。与 Normal Change 不同,Emergency Change 可以在没有 CAB 预先批准的情况下执行,但事后必须通过 CAPA/Post-mortem 流程修复根因。
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## Characteristics
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|| Attribute | Value |
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|-----------|--------|
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| Approval Required | 事后审批 |
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| CAB Involvement | 事后汇报 |
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| Automation Level | 可部分自动化 |
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| Risk Level | 高(应急执行) |
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| Change Window | 即时执行 |
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| Post-Process | 必须 CAPA/Post-mortem |
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## Process Flow
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1. **Trigger**:Incident 触发应急响应
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2. **Assessment**:快速评估并决定是否执行 Emergency Change
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3. **Execution**:立即执行变更以缓解事故
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4. **Communication**:通知相关干系人
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5. **CAPA**:事后通过 CAPA 流程修复根因
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6. **Documentation**:完成变更记录和 Post-mortem
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## Key Principle
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> Emergency Change 的目标不是永久性补丁,而是通过 CAPA/Post-mortem 识别根本原因并制定长期解决方案。
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## CAPA Process
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CAPA(Corrective and Preventive Action)包含两个阶段:
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- **Corrective Action**:修复当前问题的即时措施
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- **Preventive Action**:预防同类问题再次发生的长期措施
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## Sources
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- [[ctp-topic-30-managing-change]]
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