Common Software Architecture Patterns and Their Characteristics

Software architecture patterns provide reusable solutions to common design problems in a given context.

The article outlines seven major patterns: layered architecture, multi‑layer architecture, pipe‑filter, client‑server, model‑view‑controller (MVC), event‑driven, and microservices.

Layered architecture typically consists of presentation, business, persistence, and data layers, promoting separation of concerns but may introduce performance overhead and higher initial cost.

Multi‑layer architecture extends the concept to distributed systems, grouping components into logical layers.

Pipe‑filter architecture processes data through a series of independent filters (producer source, transformer map, tester reduce, consumer sink), suitable for ETL and compiler pipelines but less ideal for interactive systems.

Client‑server architecture separates request‑originating clients from service‑providing servers, which can become performance bottlenecks and single points of failure.

Model‑View‑Controller (MVC) divides applications into model, view, and controller components, widely used for web and mobile UI development, though it may add unnecessary complexity for simple interfaces.

Event‑driven architecture handles asynchronous events with independent processors and queues, offering scalability but posing challenges in performance and error recovery.

Microservices architecture decomposes a system into independently deployable services with their own APIs and data stores, improving scalability and team autonomy while increasing operational complexity and monitoring needs.

Each pattern includes typical contexts, problems addressed, advantages, drawbacks, and common use cases.