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  2. Design Patterns - Wikipedia

    en.wikipedia.org/wiki/Design_Patterns

    Design Patterns: Elements of Reusable Object-Oriented Software (1994) is a software engineering book describing software design patterns. The book was written by Erich Gamma , Richard Helm , Ralph Johnson , and John Vlissides , with a foreword by Grady Booch .

  3. Software design pattern - Wikipedia

    en.wikipedia.org/wiki/Software_design_pattern

    In software engineering, a software design pattern or design pattern is a general, reusable solution to a commonly occurring problem in many contexts in software design. [1] A design pattern is not a rigid structure that can be transplanted directly into source code. Rather, it is a description or a template for solving a particular type of ...

  4. List of software architecture styles and patterns - Wikipedia

    en.wikipedia.org/wiki/List_of_software...

    Software architecture patterns operate at a higher level of abstraction than software design patterns, solving broader system-level challenges. While these patterns typically affect system-level concerns, the distinction between architectural patterns and architectural styles can sometimes be blurry. Examples include Circuit Breaker. [1] [2] [3]

  5. Bridge pattern - Wikipedia

    en.wikipedia.org/wiki/Bridge_pattern

    The bridge pattern is a design pattern used in software engineering that is meant to "decouple an abstraction from its implementation so that the two can vary independently", introduced by the Gang of Four. [1] The bridge uses encapsulation, aggregation, and can use inheritance to separate responsibilities into different classes.

  6. Interaction design pattern - Wikipedia

    en.wikipedia.org/wiki/Interaction_design_pattern

    Design patterns in computer science are used by software engineers during the actual design process and when communicating designs to others. Design patterns gained popularity in computer science after the book Design Patterns: Elements of Reusable Object-Oriented Software was published. Since then a pattern community has emerged that specifies ...

  7. Circle–ellipse problem - Wikipedia

    en.wikipedia.org/wiki/Circle–ellipse_problem

    A circle can already be represented by an ellipse. There is no reason to have class Circle unless it needs some circle-specific methods that can't be applied to an ellipse, or unless the programmer wishes to benefit from conceptual and/or performance advantages of the circle's simpler model.

  8. Design pattern - Wikipedia

    en.wikipedia.org/wiki/Design_pattern

    A design pattern is the re-usable form of a solution to a design problem. The idea was introduced by the architect Christopher Alexander [ 1 ] and has been adapted for various other disciplines, particularly software engineering .

  9. Object-oriented programming - Wikipedia

    en.wikipedia.org/wiki/Object-oriented_programming

    The following are notable software design patterns for OOP objects. [57] Function object: with a single method (in C++, the function operator, operator()) it acts much like a function; Immutable object: does not change state after creation; First-class object: can be used without restriction; Container object: contains other objects