Common Software Architecture Patterns and Their Advantages and Disadvantages

Designing large‑scale enterprise systems starts with selecting an appropriate architecture that provides the required functionality and quality attributes; understanding common architecture patterns is therefore essential before writing code.

According to Wikipedia, an architecture pattern is a reusable solution to a recurring problem in software architecture, similar to design patterns but with a broader scope.

The article briefly describes ten typical patterns:

Layered pattern : Organizes a system into hierarchical layers (presentation, application, business logic, data access) that serve higher layers; used in desktop and e‑commerce web applications.

Client‑Server pattern : A server provides services to multiple clients; common in online services such as email, file sharing, and banking.

Master‑Slave pattern : A master distributes work to slaves and aggregates results; applied in database replication and peripheral device control.

Pipe‑and‑Filter pattern : Data flows through a series of processing filters; used in compilers, bio‑informatics workflows, etc.

Broker pattern : Decoupled components communicate via a broker that routes requests; examples include Apache ActiveMQ, Kafka, RabbitMQ.

P2P pattern : Each node can act as both client and server, enabling decentralized file sharing, multimedia streaming, and cryptocurrency networks.

Event‑Bus (Message Bus) pattern : Components publish events to a bus and subscribers receive them; useful in Android development and notification services.

MVC pattern : Separates an application into Model, View, and Controller to decouple data, UI, and input handling; widely used in web frameworks like Django and Rails.

Blackboard pattern : A global knowledge base (blackboard) is accessed by independent knowledge sources; applied in speech recognition, vehicle tracking, protein structure identification, and sonar signal interpretation.

Interpreter pattern : Defines a class for each language construct to evaluate expressions written in a domain‑specific language; used in SQL parsers and protocol description languages.

A comparison table then lists the main advantages and disadvantages of each pattern, such as the layered pattern’s modularity versus its limited universality, or the broker pattern’s dynamic flexibility versus the need for standardized service descriptions.

The article concludes with a brief reminder to share the content if readers find it useful.