What is need of design pattern? Explain the use of Repository Design Pattern with the help of an example

The Need for Design Patterns:

Design patterns are crucial in software engineering because they provide standardized solutions to common design problems. They offer a way to reuse successful designs and architectures, making code more maintainable, scalable, and understandable. By employing design patterns, developers can avoid reinventing the wheel, reduce redundancy, and adhere to proven best practices. This enhances the quality of software and facilitates collaboration among developers, as patterns create a common vocabulary and understanding.

Repository Design Pattern:

The Repository Design Pattern is a structural pattern that provides a centralized mechanism for managing data access logic. It abstracts the data layer, allowing the application to interact with the data source without knowing the details of the underlying _________ _______ ____ ________ ______ _________ _________ ____ ______ _____ _______.
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