Knowledge Base

Microservices
Architecture & Patterns

A practical reference built on academic research and real-world implementation — from decomposition to data management, APIs, and security.

What are Microservices?

Microservices architecture structures an application as a collection of small, independent services that communicate over well-defined APIs. Unlike monolithic systems, each service is responsible for a single business capability and can be developed, deployed, and scaled independently.

Decentralized Data

Each service owns its data and database schema, eliminating tight coupling at the data layer.

Independent Deployment

Services can be released independently, enabling continuous delivery without coordinated rollouts.

Fault Isolation

A failure in one service does not cascade to the entire system, improving overall resilience.

Independent Scalability

Scale only the services that are under load, optimizing resource usage and cost.


Architecture Patterns

Six categories of proven patterns to address the most common challenges in microservices systems.


About

JA
José André Pereira
MSc Computer Engineering · Universidade do Minho · 2023

This site distills the research from my Master's dissertation on microservices architecture principles and patterns. The dissertation was applied to a real-world e-commerce case study, implementing and evaluating patterns like Saga and CQRS. I hope it serves as a useful reference for developers and architects working with distributed systems.