Generalization is the term that we use to denote abstraction of common properties into a base class in UML. The UML diagram's Generalization association is also known as Inheritance. When we implement Generalization in a programming language, it is often called Inheritance instead.
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If two classes in a model need to communicate with each other, there must be a link between them, and that can be represented by an association (connector). Association can be represented by a line between these classes with an arrow indicating the navigation direction.
The UML diagram's Generalization association is also known as Inheritance. When we implement Generalization in a programming language, it is often called Inheritance instead. Generalization and inheritance are the same. The terminology just differs depending on the context where it is being used. Learn UML.
Association. If two classes in a model need to communicate with each other, there must be a link between them, and that can be represented by an association ( connector). Association can be represented by a line between these classes with an arrow indicating the navigation direction.
If it can then it is called Aggregation.
In other words, a superclass has the most general attributes, operations, and relationships that may be shared with subclasses. A subclass may have more specialized attributes and operations. Specialization is the reverse process of Generalization means creating new sub-classes from an existing class.
Generalization is a mechanism for combining similar classes of objects into a single, more general class. Generalization identifies commonalities among a set of entities. The commonality may be of attributes, behavior, or both. In other words, a superclass has the most general attributes, operations, and relationships that may be shared with subclasses. A subclass may have more specialized attributes and operations.
But there is a subtle difference: Aggregation implies a relationship where the child can exist independently of the parent. Example: Class (parent) and Student (child). Delete the Class and the Students still exist. Composition implies a relationship where the child cannot exist independent of the parent.
A single student can associate with multiple teachers: The example indicates that every Instructor has one or more Students: We can also indicate the behavior of an object in an association (i.e., the role of an object) using role names.