In software engineering, a design pattern describes a relatively small, well-defined aspect (i.e. functionality) of a computer program in terms of how...

Design Patterns: Elements of Reusable Object-Oriented Software (1994) is a software engineering book describing software design patterns. The book was...

disciplines, particularly software engineering. An organized collection of design patterns that relate to a particular field is called a pattern language. This language...

computer programming, the strategy pattern (also known as the policy pattern) is a behavioral software design pattern that enables selecting an algorithm...

object-oriented software, that is, objects that are easier to implement, change, test, and reuse. The Factory Method design pattern solves problems like:...

A visitor pattern is a software design pattern that separates the algorithm from the object structure. Because of this separation, new operations can be...

adaptive. Architectural patterns are similar to software design patterns but have a broader scope. Even though an architectural pattern conveys an image of...

In software engineering, the singleton pattern is a software design pattern that restricts the instantiation of a class to a singular instance. One of...

In software design and engineering, the observer pattern is a software design pattern in which an object, named the subject, maintains a list of its dependents...

The facade pattern (also spelled façade) is a software design pattern commonly used in object-oriented programming. Analogous to a façade in architecture...