Learn how to make classes, attributes, and methods in this UML Class Diagram tutorial. There’s also in-depth training and examples on inheritance, aggregation, and composition relationships.

UML (or Unified Modeling Language) is a software engineering language that was developed to create a standard way of visualizing the design of a system. And UML Class Diagrams describe the structure of a system by showing the system’s classes and how they relate to one another.

This tutorial explains several characteristics of class diagrams. Within a class, there are attributes, methods, visibility, and data types. All of these components help identify a class and explain what it does.

There are also several different types of relationships that exist within UML Class Diagrams. Inheritance is when a child class (or subclass) takes on all the attributes and methods of the parent class (or superclass). Association is a very basic relationship where there’s no dependency. Aggregation is a relationship where the part can exist outside the whole. And finally, Composition is when a part cannot exist outside the whole. A class would be destroyed if the class it’s related to is destroyed.

Further UML Class Diagram information: https://www.lucidchart.com/pages/uml-class-diagram

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Credits for Photos with Attribution Requirements
Tortoise – by Niccie King – http://bit.ly/2uHaL1G
Otter – by Michael Malz – http://bit.ly/2vrVoYt
Slow Loris – by David Haring – http://bit.ly/2uiBWxg
Creep – by Poorna Kedar – http://bit.ly/2twR4K8
Visitor Center – by McGheiver – http://bit.ly/2uip0Hq
Lobby – by cursedthing – http://bit.ly/2twBWw9