Enterprise Architecture
Enterprise Architecture (EA). It refers to the universal solution provided for the systematic and universal problems in the enterprise business information management system. More specifically, it is based on business-oriented and driven architecture to understand, analyze, design, construct, integrate, extend, Operation and management information systems. The key to complex system integration is architecture (or system) -based integration, not component (or component) -based integration.

 An effective enterprise architecture plays a decisive role in the survival and success of an enterprise, and is an indispensable means for enterprises to obtain a competitive advantage through IT.
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Why Enterprise Architecture ? 
 
According to the Open Group's business leadership IT architecture guidelines: "An effective Enterprise Architecture (EA) has a decisive effect on the survival and success of an enterprise, and is an indispensable means for enterprises to obtain competitive advantages through IT."
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Enterprise Architecture Classification
It can be divided into two parts: business architecture and IT architecture. Most enterprise architecture methods have evolved from IT architecture.
 
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 Business structure: It is a channel that transforms a company's business strategy into daily operations. The business strategy determines the business structure. It includes the business operation mode, process system, organizational structure, and geographical distribution.
 
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 IT architecture: The IT framework that guides IT investment and design decisions is a comprehensive blueprint for building enterprise information systems, including data architecture, application architecture, and technology architecture.
 
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