The Desktop Clipboard Protocol is used by the Windows ClipBook Viewer application [MSDN-CLIPBOARD]. This protocol allows for transfer of clipboard data such as text and bitmap images between two participating machines.
In this protocol, the server role is defined as the actor that shares its clipboard data and provides this data when requested by the client. The client role is the actor that requests clipboard data from the server and is able to display this data to the user.
A sequence diagram showing this relationship is presented in section 3.