Introduction To Design Patterns

Ali Samir
Aug 3, 2023
2 min read
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Introduction

Design patterns are a set of best practices and guidelines for software design. They provide reusable solutions to common problems that developers face in software development. Design patterns offer a vocabulary and a shared understanding for developers to communicate about their code and to use tried-and-tested solutions to problems.


Design patterns are not specific to any programming language or technology. They are general solutions that can be applied to different situations and domains. The use of design patterns can improve the quality of software by making it more modular, flexible, and maintainable. They can also help reduce the time and cost of development by providing pre-existing solutions to problems.


Types of Design Patterns

Design patterns are categorized into three main groups:

  • Creational Patterns

  • Structural Patterns

  • Behavioral Patterns

Each category includes several patterns that can be used to solve specific problems. It's important to note that design patterns are not a one-size-fits-all solution, and developers should choose the appropriate pattern for each problem they are trying to solve.


  1. Creational patterns: These patterns are used to create objects flexibly and efficiently. Examples of creational patterns include Singleton, Factory Method, and Abstract Factory.

  2. Structural patterns: These patterns deal with the composition of classes and objects to form larger structures. Examples of structural designs include Adapter, Decorator, and Bridge.

  3. Behavioral patterns: These patterns deal with communication between objects and the distribution of responsibilities. Examples of behavioral patterns include Observer, Command, and Strategy.

Design patterns can help developers avoid common mistakes and improve the overall quality of their code. They are not a silver bullet, but rather a tool that can be used in conjunction with good programming practices to create robust and maintainable software.


Overall, design patterns are a powerful tool for developers to improve their code quality, reduce development time and cost, and create more scalable and maintainable software.


Design Patterns Resources


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