Why Not Rewrite Everything at Once
Fully rewriting a monolithic application is rarely the right approach: it ties up teams for months and delays any value delivered to users. A progressive, module-by-module modernization reduces risk while continuously delivering value.
Steps for a Successful Decomposition
- Map functional domains and their boundaries (bounded contexts)
- Identify the first module to extract — usually the one least coupled to the rest of the system
- Set up a facade API to isolate the new microservice from the existing monolith
- Containerize and deploy independently, with its own CI/CD pipeline
Our Approach at ModerneTI Labs
We support our clients through this transition with an iterative method: each extracted microservice is tested, deployed, and validated in production before moving on to the next, limiting operational risk at every step.