Types of System Archietecture Patterns - rnakidi/dsa GitHub Wiki
The backbone of every successful software system is its architecture.
Selecting the right architecture is key to achieving scalability, maintainability, and efficiency in development.
Let’s explore some foundational and modernized architecture patterns that developers and architects rely on to tackle diverse challenges:
1️⃣ Distributed Leader-Follower Architecture (formerly Master-Slave)
This pattern is ideal for distributed systems where tasks are delegated from a central “Leader” to multiple “Followers.” Followers process tasks independently and report results back to the Leader.
2️⃣ Modular Monolith (Modernized Monolithic Architecture) While the traditional monolith often has tightly coupled components, the Modular Monolith introduces clear boundaries between modules, making it easier to maintain and scale.
3️⃣ MVC (Model-View-Controller) A timeless pattern for separating concerns, MVC divides an application into three interconnected components: Model: Manages data and business logic. View: Handles the user interface. Controller: Acts as the intermediary, processing user input.
4️⃣ Microservices Architecture A fully decentralized system where each service handles its own data and logic independently. Key Benefits: Scalability, fault isolation, and flexibility in technology choices for different services. Modern Context: Microservices have evolved to adopt best practices such as service meshes for observability and communication. Examples include Kubernetes and Istio.
5️⃣ Event-Driven Architecture (formerly Event Broker) A modern architecture where components communicate asynchronously via events. Producers emit events, and consumers subscribe to relevant ones, decoupling the system for scalability and responsiveness.
6️⃣ SOA (Service-Oriented Architecture) Overview: A robust architecture focused on reusability, where individual services are combined to build large systems. It emphasizes interoperability and service contracts.
7️⃣ Layered Architecture (Simplified as Tiered Design) A logical separation of concerns into layers such as: Presentation Layer: Manages user interaction. Business Logic Layer: Handles core functionality and processing. Data Persistence Layer: Manages data storage and retrieval.
8️⃣ Hybrid Modular Systems (New Trend) Overview: A flexible approach combining the modular monolith and microservices architecture. It allows teams to scale parts of the system independently while maintaining monolith simplicity for smaller features.
Key Takeaways Start simple: If you're building a small or medium-sized application, consider a Modular Monolith or Layered Architecture.
Plan for scalability: For larger applications, embrace Microservices or Event-Driven Architectures for flexibility.
Focus on flexibility: Hybrid approaches like Hybrid Modular Systems can bridge the gap between simplicity and scalability.