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Design Patterns

Design Patterns are formalized best practices that programmers can use to solve common problems in software design. They provide a template for how to solve a problem that can be used in many different situations. Using design patterns helps to prevent subtle issues that can cause major problems and improves code readability and maintainability by providing a clear, standard approach to common problems. Examples of design patterns include Creational, Structural, and Behavioral patterns.
Related Terms
Cross-Cutting ConceptCyclomatic ComplexityEvent SourcingDeployment
What are Creational design patterns?
Creational design patterns deal with object creation mechanisms, trying to create objects in a manner suitable to the situation, examples include Singleton and Factory patterns.
What are Structural design patterns?
Structural design patterns deal with object composition, ensuring that if one part changes, the entire structure does not need to be changed. Examples include Adapter, Composite, and Proxy patterns.
What are Behavioral design patterns?
Behavioral design patterns are concerned with algorithms and the assignment of responsibilities between objects, examples include Strategy, Observer, and Command patterns.