---
id:"kb-2026-00160"
title:"Microservices Architecture"
schema_type:"TechArticle"
category:"computer-science"
language:"en"
confidence:"high"
last_verified:"2026-05-22"
generation_method: "human_only"
derived_from_human_seed: true
primary_sources:
  - title: "Building Microservices (2nd Edition)"
    authors: ["Newman, Sam"]
    type: "book"
    year: 2021
    url: "https://www.oreilly.com/library/view/building-microservices-2nd/9781492034018/"
    institution: "O'Reilly"
    note: "The definitive microservices book: decomposition, communication, testing, deployment"
secondary_sources:
  - title: "Microservices (Martin Fowler)"
    authors: ["Fowler, Martin", "Lewis, James"]
    type: "article"
    year: 2014
    url: "https://martinfowler.com/articles/microservices.html"
    institution: "ThoughtWorks"
    note: "The article that popularized microservices — smart endpoints, dumb pipes"
completeness: 0.88
ai_citations:
  last_citation_check:"2026-05-22"
---

## TL;DR

Microservices architectural style structures an application as a collection of loosely coupled, independently deployable services. Each service owns its data, communicates via APIs, and can be developed/deployed/scaled independently. Contrasts with monolithic architecture (all-in-one).

## Core Explanation

Key principles: decentralized data management (each service has its own database), smart endpoints/dumb pipes, design for failure (circuit breakers, retries, bulkheads). Challenges: distributed complexity, network latency, data consistency (eventual consistency), service discovery. When NOT to use microservices: early-stage products, small teams, simple domains.

## Further Reading

- [Building Microservices (2nd Edition, Sam Newman)](https://www.oreilly.com/library/view/building-microservices-2nd/9781492034018/)