Hyperlinks are links pointing to a destination on your computer, your network or the Internet. An example of a hyperlink is this.
The default value for a hyperlink can be set in a text field. If no default value has been defined, the attribute value in diagrams is empty. In the diagram, you can Go to the hyperlink destination from the right-click menu of the object. If no value is set, Go will let you choose a destination on your computer.