In software engineering, multi-tier architecture (often referred to as n-tier architecture) is a client-server architecture in which an application is executed by more than one distinct software agent. For example, an application that uses middleware to service data requests between a user and a database employs multi-tier architecture. The most widespread use of "multi-tier architecture" refers to three-tier architecture.

See also

• client-server
• three-tier (computing)
• Web application
• business logic
• Rich Internet Application

Software engineering | Software architecture

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