A Gang of Four structural design pattern that provides a single simplified interface to a larger body of code, such as a complex subsystem or library, hiding its internal complexity from the code that uses it.
Facts
Core PrincipleProvides a single simplified interface that masks a more complex set of underlying classes or subsystems, easing use of a library or system built from many interdependent parts. 2 FAQs
When was the Facade pattern first introduced?
In 1994, in the Design Patterns book.
The Facade pattern was introduced in 1994, when it appeared in Design Patterns: Elements of Reusable Object-Oriented Software, the software engineering book that catalogued the Facade pattern alongside the other Gang of Four design patterns.
Connections
Associated With
Erich Gamma, Pioneers Erich Gamma co-authored the 1994 Design Patterns book that named and catalogued the Facade pattern among the original 23.
In Field
Sources
1. Wikipedia: Design Patterns (book)
Wikimedia FoundationLead section, first sentenceQuote, Lead section, first sentence
Design Patterns: Elements of Reusable Object-Oriented Software (1994) is a software engineering book describing software design patterns.
2. Wikipedia: Facade Pattern
Wikimedia FoundationLead section, first paragraph
it is an object that serves as a front-facing interface masking more complex underlying or structural code.
In Group: Software Design Patterns, Lead
The facade pattern (also spelled façade) is a software design pattern commonly used in object-oriented programming.
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