Diagram comparing modular monolith and microservices architectures showing deployment, database, communication, scalability, and maintenance differences

The image is a side-by-side architectural comparison between Modular Monolith and Microservices. The left side depicts a shield-shaped monolithic structure containing tightly coupled modules like Accounts, Inventory, Orders, and Shipping with a single unified database and deployment, highlighting potential ‘spaghetti code’ and vertical scaling. The right side illustrates microservices as independent services such as Account, Inventory, Order, and Shipping, each with decentralized data, loose coupling, fault isolation, and polyglot programming, all connected with horizontal scaling and independent deployment. This infographic uses icons like rockets for deployments, databases, gears for structure, and servers with simplified visuals and blue and orange color coding for clarity.

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