Design patterns are essential concepts in software engineering that help in solving common problems in software design. They provide solutions that have been refined and recognized over time by the software engineering community.

Common Design Patterns

Here are some of the most commonly used design patterns:

  • Singleton Pattern: Ensures a class has only one instance and provides a global point of access to it.
  • Factory Pattern: Creates objects without specifying the exact class of object that will be created.
  • Observer Pattern: Defines a one-to-many dependency between objects so that when one object changes state, all its dependents are notified and updated automatically.
  • Strategy Pattern: Defines a family of algorithms, encapsulates each one, and makes them interchangeable.

Learning More

For more information on design patterns, you can visit our comprehensive guide on Design Patterns.

Design Patterns in Software Engineering