Table of contents
IT Architectures in 2025
Overview
Modern software architectures focus on adaptability, decoupling, and scalability. Some favor simplicity and speed, others emphasize robustness and long-term evolution.
Comparative Table
| Architecture | Core Principle | Typical Use Cases | Main Advantages | Drawbacks |
|---|---|---|---|---|
| Monolithic | Single deployable unit | Small apps, MVPs | Simple, easy to deploy | Hard to scale and evolve |
| Layered / N-Tier | Separation of presentation, logic, and data | Enterprise systems | Clear structure, maintainable | Tight vertical coupling |
| Microservices | Independent services via API | SaaS, large platforms | Scalability, CI/CD, modularity | Complex networking, testing overhead |
| Event-Driven | Asynchronous communication (pub/sub) | IoT, finance, commerce | Loose coupling, extensible | Hard to debug and trace |
| Serverless / FaaS | Cloud functions triggered on demand | APIs, automation tasks | No server management, pay-per-use | Cold starts, vendor lock-in |
| SOA (Service-Oriented) | Shared services via ESB | Legacy enterprise systems | Integration and reuse | Centralized coupling, heavy setup |
| Hexagonal / Clean | Domain-driven core, isolated adapters | Maintainable, testable systems | Testability, framework independence | Steeper learning curve |
| Micro-Frontends | Decoupled UI modules | Complex frontends, SaaS | Modular, team autonomy | Shared dependency management |
| CQRS / Event Sourcing | Separate read/write, event storage | Financial and audit systems | Full history, consistency | Modeling and query complexity |
Summary by Context
| Project Context | Recommended Architectures | Key Reason |
|---|---|---|
| MVP / Prototype | Monolithic / N-Tier | Fast setup and simplicity |
| SaaS Product | Microservices / Event-Driven | Scalability and modularity |
| Cloud Application | Serverless | Simplified ops, cost efficiency |
| Long-Term Project | Clean / Hexagonal | Maintainability and domain isolation |
| Multi-Team Frontend | Micro-Frontends | Independence and modular design |
| Legacy System | SOA / CQRS | Compatibility and integration |
Conclusion:
In 2025, leading trends combine modularity, scalability, and testability.
The goal is not to find one perfect architecture, but to choose the one that best fits your business, technical, and team constraints.