<<< DP vs AP e.g.

Certainly! Design patterns and architectural patterns are both types of patterns used in software development, but they serve different purposes and operate at different levels of abstraction.

1. Design Patterns:

1. Singleton Pattern:

   -Type: Creational Design Pattern

   -Purpose: Ensures that a class has only one instance and provides a global point of access to it.

2. Factory Pattern:

   -Type: Creational Design Pattern

   -Purpose: Defines an interface for creating an object but lets subclasses alter the type of objects that will be created.

3. Observer Pattern:

   - Type: Behavioral Design Pattern

   -Purpose: Defines a one-to-many dependency between objects so that when one object changes state, all its dependents are notified and updated automatically.

4. Facade Pattern:

   -Type: Structural Design Pattern

   -Purpose: Provides a simplified interface to a set of interfaces in a subsystem, making it easier to use.

5. Strategy Pattern:

   -Type: Behavioral Design Pattern

   -Purpose: Defines a family of algorithms, encapsulates each one, and makes them interchangeable. It lets the algorithm vary independently from clients that use it.

2. Architectural Patterns:

1. Repository Pattern:

   -Type: Architectural Pattern

   -Purpose: Separates the logic that retrieves data from a data store from the rest of the application, providing a clean and consistent API to interact with data storage.

2. MVC (Model-View-Controller):

   -Type: Architectural Pattern

   -Purpose: Separates an application into three interconnected components: the Model (data and business logic), View (user interface), and Controller (handles user input and updates the Model and View).

3. Layered Architecture:

   -Type: Architectural Pattern

   -Purpose: Organizes code into layers (presentation layer, business logic layer, data access layer) to promote modularity, maintainability, and separation of concerns.

4. Microservices Architecture:

   -Type: Architectural Pattern

   -Purpose: Structures an application as a collection of small, independent services that can be developed, deployed, and scaled independently.

In summary, design patterns are more focused on solving specific problems related to object creation, interaction, and behavior within classes, while architectural patterns deal with the overall organization and structure of an entire application, including how different components and modules interact. The patterns you mentioned, such as Singleton, Factory, Observer, Facade, Strategy, and Repository, fall into the category of design patterns or architectural patterns based on their scope and purpose.

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