UML class diagram is a handy tool in object-oriented design. I am using it currently and facing presenting an abstract class with UML. I googled it but got nowhere.
So I would like to ask how to express an abstract class in UML class diagram, and it must be able to differentiate from concrete class
Best Answer
You have to write the class name in italic :
Here Context is an
abstract class
and Structure is a "concrete"class
P. 99 of the specs says: