Chapter 3. Identifying and scoping microservices

This chapter covers

  • Scoping microservices for business capability
  • Scoping microservices to support technical capabilities
  • 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 too long. 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 leads to longer turnaround. In other words, if you aren’t able to scope your ...

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