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In software engineering, a class diagram [1] in the Unified Modeling Language (UML) is a type of static structure diagram that describes the structure of a system by showing the system's classes, their attributes, operations (or methods), and the relationships among objects. The class diagram is the main building block of object-oriented modeling.
The Object Constraint Language (OCL) for defining rules for model elements; The UML Diagram Interchange that defines how UML 2 diagram layouts are exchanged; Until UML 2.4.1, the latest versions of these standards were: [19] UML Superstructure version 2.4.1; UML Infrastructure version 2.4.1; OCL version 2.3.1; UML Diagram Interchange version 1.0.
The Executable UML method limits the UML elements that can be used in an Executable UML class diagram. An Executable UML class diagram is meant to expose information about the domain. Too much complexity in the statechart diagrams is a good indicator that the class diagram should be reworked.
In the above UML class diagram, the Client class refers to the Prototype interface for cloning a Product. The Product1 class implements the Prototype interface by creating a copy of itself. The UML sequence diagram shows the run-time interactions: The Client object calls clone() on a prototype:Product1 object, which creates and returns a copy ...
Class diagram - a type of static structure diagram that describes the structure of a system by showing the system's classes, their attributes and the relationships between the classes. Classifier - a category of UML elements that have some common features, such as attributes or methods.
In the above UML class diagram, the Creator class that requires a Product object does not instantiate the Product1 class directly. Instead, the Creator refers to a separate factoryMethod() to create a product object, which makes the Creator independent of the exact concrete class that is instantiated.
In the above UML class diagram, the Director class doesn't create and assemble the ProductA1 and ProductB1 objects directly. Instead, the Director refers to the Builder interface for building (creating and assembling) the parts of a complex object, which makes the Director independent of which concrete classes are instantiated (which ...
UML class diagram. The abstract factory pattern in software engineering is a design pattern that provides a way to create families of related objects without imposing their concrete classes, by encapsulating a group of individual factories that have a common theme without specifying their concrete classes. [1]