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wiki/concepts/Enterprise-Architecture.md

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+---
+title: "Enterprise Architecture (EA)"
+type: concept
+tags: [Architecture, Cloud, Strategy, Enterprise]
+sources: [ctp-topic-23-introduction-to-the-technical-architecture-team-and-function, ctp-topic-47-enterprise-architecture-cloud-standards]
+last_updated: 2026-04-14
+---
+
+# Enterprise Architecture (EA)
+
+## Definition
+**Enterprise Architecture (EA)** 是架构体系中的最高层，负责将业务目标转化为技术原则和标准，确保技术投资与商业战略保持一致。
+
+## Responsibilities
+
+| Responsibility | Description |
+|----------------|-------------|
+| Business Strategy Alignment | 将业务目标映射到技术投资 |
+| Technology Standards | 制定和维护技术标准和最佳实践 |
+| Governance | 确保技术决策符合组织目标 |
+| Roadmap Planning | 制定长期（12-24个月）技术路线图 |
+
+## Relationship with Other Architecture Layers
+
+```
+Enterprise Architecture (EA)
+         │
+         ├── Business Strategy Alignment
+         │
+         ▼
+Solution Architecture (SA) ◄── Middle Layer
+         │
+         └── Solution Design
+         │
+         ▼
+Technical Architecture (TA) ◄── Implementation Layer
+```
+
+## Key Activities
+
+1. **Strategic Planning**: 制定技术愿景和路线图
+2. **Standard Setting**: 定义技术标准和框架
+3. **Portfolio Management**: 管理技术资产组合
+4. **Stakeholder Communication**: 向业务利益相关者传达技术战略
+
+## Related Concepts
+
+- [[Solution Architecture (SA)]]
+- [[Technical Architecture (TA)]]
+- [[Cloud-First Strategy]]
+- [[Landing Zone Architecture]]
+
+## Sources
+
+- [[ctp-topic-23-introduction-to-the-technical-architecture-team-and-function]]
+- [[ctp-topic-47-enterprise-architecture-cloud-standards]]