4 Identifying and scoping microservices

This chapter covers

  • Scoping microservices for business capability
  • Scoping microservices to support technical capabilities
  • Scoping microservices to support efficient development work
  • Managing when scoping microservices is difficult
  • Carving out new microservices from existing ones

To succeed with microservices, it’s important to be good at scoping each microservice appropriately. If your microservices are too big, the turnaround on creating new features and implementing bug fixes becomes longer than it needs to. If they’re too small, the coupling between microservices tends to grow. If they’re the right size but have the wrong boundaries, coupling also tends to grow, and higher coupling also leads to longer ...

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