Microservices are an architectural style where applications are composed of a collection of small, autonomous services that communicate over APIs. Each service is responsible for a specific function and can be developed, deployed, and scaled independently.
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Microservices are small, business-focused services that can be developed, operated, and released independently.
Microservices arose in software architecture as a response to centrally released applications that were difficult to change and to the growing size of autonomous development teams. The movement took shape in 2010s practice and discussion; Martin Fowler's writing and pattern collections such as microservices.io helped establish its shared vocabulary.
Think of each service as its own workshop with a clear handoff. Workshops work independently but must agree on stable interfaces and failure behavior when they exchange work.
It defines the business responsibility and data owned by a service.
A service can change and ship independently within its contracts.
Microservices can decouple teams and changes, while introducing distributed data, network failures, observability, and operational overhead.
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