title: UML Class Diagram: default values of the method parameters
body: <p>According to UML (or its standard use), can I use default values for the class method parameters, although these default values are the invocation to some subroutine?. I am especially interested when the subroutine belongs to a third party library. For example: I am using OpenCV in my application, can I / should I indicate the routine cv::getStructuringElement(cv::MORPH_RECT, cv::Size(3,3)) as the default value of a parameter of a method in my class diagram?</p>