---
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]]