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System Architectural Styles

Monolithic Architecture

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Monolithic Architecture

Monolithic Architecture

A monolithic application is built as a single, unified unit. All components - UI, business logic, and data access - are tightly coupled in one codebase.

Structure

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Advantages

  • Simple Development: One codebase, one deployment
  • Easy Testing: End-to-end tests are straightforward
  • Low Latency: In-process calls, no network overhead

Disadvantages

  • Scaling Issues: Must scale entire application
  • Technology Lock-in: Hard to adopt new technologies
  • Deployment Risk: Small change requires full redeploy