The Model-View-ViewModel (MVVM) Pattern is an architectural design pattern that separates an application into three core components: Model, View, and ViewModel. It is particularly popular in UI-centric applications, such as those built with frameworks like WPF (Windows Presentation Foundation), Xamarin, Angular, or Android with Jetpack’s ViewModel. MVVM enhances separation of concerns, testability, and maintainability by …
The Model-View-Presenter (MVP) Pattern is an architectural design pattern that organizes an application into three components: Model, View, and Presenter. It is a derivative of the Model-View-Controller (MVC) pattern, designed to enhance testability and separation of concerns, particularly in user interface (UI) applications. MVP is commonly used in frameworks like Android development, GWT (Google Web …
The Model-View-Controller (MVC) pattern is a fundamental architectural pattern in software engineering, particularly prominent in the design of web applications and user interfaces. It separates an application into three interconnected components, each with distinct responsibilities: the Model, the View, and the Controller. This separation facilitates modularity, maintainability, and scalability, making it easier to manage and …
The Visitor Pattern is a behavioral design pattern that allows you to add further operations to objects without modifying their structure. It separates an algorithm from the object structure on which it operates, thereby enabling the addition of new operations without altering the classes of the elements on which it operates. This pattern is particularly …
The Template Method Pattern is a behavioral design pattern that defines the skeleton of an algorithm in a method, allowing subclasses to alter specific steps of the algorithm without changing its structure. This pattern is crucial in situations where the overall algorithm remains consistent, but certain details may vary across different implementations. Key Components Abstract …
The Strategy Pattern is a behavioral design pattern that enables selecting an algorithm or behavior at runtime by encapsulating a family of interchangeable algorithms into separate classes. It allows a client to choose the appropriate algorithm dynamically, promoting flexibility and adherence to the Open/Closed Principle. This pattern is particularly useful when you need to switch …
The State Pattern is a behavioral design pattern that allows an object to alter its behavior when its internal state changes. This pattern is particularly useful when an object’s behavior depends on its state and changes dynamically based on internal conditions. At its core, the State Pattern enables an object to delegate state-specific behavior to …
The Observer Pattern is a behavioral design pattern that defines a one-to-many dependency between objects so that when one object changes state, all its dependents are notified and updated automatically. This pattern is widely used in software development to build loosely coupled systems where changes in one part of the system trigger actions or updates …
The Memento Pattern is a behavioral design pattern that allows an object to capture and store its current state so it can be restored later without violating encapsulation. This pattern is particularly useful when implementing features like undo/redo operations, where the state of an object needs to be preserved and restored at various points in …
The Mediator Pattern is a behavioral design pattern that facilitates communication between objects in a software system. It centralizes complex communications and control logic between related objects, promoting loose coupling and making it easier to modify their interactions independently. In a typical software system, objects often need to communicate with each other to accomplish tasks. …
