Are You Building Microservices or Distributed Monoliths?
Splitting a system into services does not automatically create independence. Many estates labeled microservices are really distributed monoliths with network latency added on top.
Service count is not architectural maturity
Microservices are appealing because they promise modularity, autonomy, and scale. But many organisations adopt the external shape of microservices without changing the underlying coupling model.
The result is a distributed monolith: many deployables, many APIs, and many operational headaches, all still dependent on each other to function.
This architecture usually delivers the disadvantages of distribution before it earns the benefits of independence.
The warning signs are easy to miss
A system may be labeled microservices while still behaving like one tightly coupled application if:
- releases must be coordinated across several services
- one user journey requires too many synchronous hops
- shared databases still drive hidden coupling
- domain boundaries are unclear or politically defined
- local changes trigger broad regression anxiety
In that environment, the network becomes a tax on an architecture that has not actually decomposed.
Independence is the real test
The core question is simple: can a team change, deploy, and operate its service with limited need for synchronised change elsewhere?
If the answer is usually no, then the architecture may be distributed but it is not meaningfully autonomous.
That does not mean microservices are wrong. It means decomposition has to be grounded in domain and operational design, not just code splitting.
What healthy service boundaries look like
Stronger service architectures tend to share a few characteristics:
- clear domain ownership
- minimal synchronous dependency chains
- explicit data contracts between boundaries
- independent deployment and rollback paths
- observability that reflects user journeys across services
Without those foundations, service proliferation often creates complexity faster than value.
Sometimes the better answer is a modular monolith
This is the part many teams resist. A well-structured modular monolith can be a more mature architecture than a poorly decomposed service estate.
If the domain is still evolving, team boundaries are unstable, or operational maturity is limited, a modular monolith often provides better coherence and lower cost while preserving a path to future decomposition.
Architecture should match organisational readiness
Microservices succeed when technical boundaries, team design, delivery discipline, and platform maturity reinforce each other.
When those conditions are absent, service sprawl becomes an expensive illusion of progress. The goal is not to have more services. The goal is to create more independence where independence is actually useful.
