4 Designing new features

This chapter covers

  • Scoping microservices based on business capabilities and use cases
  • When to scope microservices to reflect technical capabilities
  • Making design choices when service boundaries are unclear
  • Scoping effectively when multiple teams own microservices

Designing a new feature in a microservice application requires careful and well-reasoned scoping of microservices. You need to decide when to build new services or extend existing services, where boundaries lie between those services, and how those services should collaborate.

Well-designed services have three key characteristics: they’re responsible for a single capability, independently deployable, and replaceable. If your microservices have the wrong ...

Get Microservices in Action now with the O’Reilly learning platform.

O’Reilly members experience live online training, plus books, videos, and digital content from nearly 200 publishers.