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Monolithic Architecture
Definition: A monolithic architecture is a software design pattern in which an application is built as a unified unit. All application components (user interface, business logic, and data access layers) are tightly coupled and run as a single service.
Characteristics: This architecture is simple to develop, test, deploy, and scale vertically. However, it can become complex and unwieldy as the application grows.
Examples
- Older/Traditional Banking Systems.
- Enterprise Resource Planning (SAP ERP) Systems.
- Content Management Systems like WordPress.
- Legacy Government Systems. (Tax filing, public records management, etc.)
Advantages and Disadvantages
Advantages: Simplicity in development and deployment, straightforward horizontal scaling, and often more accessible debugging since all components are in one place.
Disadvantages: Scaling challenges, difficulty implementing changes or updates (especially in large systems), and potential for more extended downtime during maintenance.