Key Takeaways
- Microservices enable independent deployment and scaling of each service, ideal for large teams and high-scale applications.
- The biggest mistake is starting with microservices: begin with a monolith and extract services when team or scale needs demand it.
- Microservices trade development simplicity for operational complexity. You need DevOps maturity before adopting them.
Monolith vs Microservices: Decision Guide
| Factor | Monolith | Microservices |
|---|---|---|
| Team size | 1-15 developers | 15+ developers (multiple teams) |
| Deployment | All-or-nothing | Independent per service |
| Complexity | Simple (one codebase) | Complex (distributed system) |
| Scaling | Scale everything together | Scale individual services |
| Data consistency | Simple (one database) | Complex (distributed transactions) |
Premature Microservices
Building microservices for a small team is one of the most expensive architectural mistakes. You get all the complexity of distributed systems with none of the benefits. Start monolithic, establish clear module boundaries, and extract services only when specific pain points (deployment bottlenecks, scaling needs, team autonomy) demand it.
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