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Monolith vs Microservices Trade-offs

Choosing between a monolith and microservices is one of the first major architecture decisions a team makes.

  • Small team
  • Fast delivery is the priority
  • Domain is still changing
  • Operational simplicity matters more than independent scaling
  • Multiple teams need independent ownership
  • Different parts of the system scale differently
  • Release independence matters
  • The team can support operational complexity
AreaMonolithMicroservices
ComplexityLowerHigher
DeploymentSimplerMore moving parts
ScalingCoarserMore flexible
DebuggingEasierHarder
Team autonomyLowerHigher

Start with a monolith unless there is a clear reason not to. Split into services when team boundaries, scaling needs, or deployment independence justify the cost.