How to Display a Parameter in Class without Showing its Name?

Programming languages like C or C++ accepts nameless arguments in function declaration. You may write something like void myFunction(double){…} to declare a function that accepts a double as argument. In modeling level, you can represent this kind of function by not showing the parameter name in an operation. This article shows you how to do this.

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Typically, an operation in a UML class is displayed in this pattern: ${oper-name} ([${parameter-name} : ${parameter-type}]*) : ${return-type}. When you want not to show the name of a parameter, name the parameter by using unnamed_ as prefix. Parameter names with unnamed_ as prefix won’t get rendered in class diagram.

 

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Related Links

Visual Paradigm User’s Guide – Drawing Class Diagrams Download 30 days free evaluation copy