A simple guide to understanding the best systems design.
Design patterns:
Software architectural patterns are reusable solutions to commonly occurring design problems in software architecture that provide a structured way to organize and design a software system to achieve specific qualities such as flexibility, scalability, and maintainability.
1. Model-View-Controller (MVC): — MVC is a design pattern that separates an application into three interconnected components: Model (data and business logic), View (user interface), and Controller (handles user input and updates the model and view accordingly).
Key Components: Model, View, Controller.
2. Event-Driven Architecture (EDA): — In an event-driven architecture, the flow of the system is determined by events such as user actions, sensor outputs, or messages from other systems. Components in the system communicate through events, and event handlers respond to these events.
Key Concepts: Events, Event Handlers, Asynchronous Communication.
3. Layered Architecture: — Layered architecture organizes the system into distinct layers, where each layer has a specific responsibility. Communication typically occurs only between adjacent layers, and each layer provides specific functionality. -
Key Concepts: Presentation Layer, Business Logic Layer, Data Access Layer.
4. Monolith: — A monolithic architecture is a traditional approach where all components and modules of a software application are tightly integrated into a single codebase and deployed as a single unit. This contrasts with distributed architectures like microservices. -
Key Characteristics: Single Codebase, Tight Integration, Single Deployment Unit.
5. Microservices Architecture: — Microservices break down a software application into small, independently deployable services. Each service focuses on a specific business capability and communicates with others through APIs. Microservices promote scalability, maintainability, and flexibility. -
Key Characteristics: Independent Deployability, Service Isolation, Decentralized Data Management.
6. Master-Slave Architecture: — In a master-slave architecture, one central node (the master) controls and manages one or more subordinate nodes (the slaves). The master distributes tasks to the slaves, and they report back to the master. -
Key Components: Master Node, Slave Nodes, Task Distribution.
These architectural patterns provide different ways to structure and design software systems based on various requirements, such as scalability, maintainability, and ease of development.
The choice of an architectural pattern depends on the specific needs and goals of the application or system being developed.
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