digraph G {
 rankdir=LR
 node [shape=box, fontsize=9, height=0.1, width=0.05 ]
 edge [arrowsize=0.5, len=0.1]
"UserRequestedAction\n"
"CashPointActivity\n"
"Authorization\n"
"desiredAmount\n"
"UserResources\n"
"CashPointResources\n"
"EnoughResources\n"
"UserRequestedAction\n"->"CashPointActivity\n"
"Authorization\n"->"CashPointActivity\n"
"desiredAmount\n"->"EnoughResources\n"
"CashPointResources\n"->"EnoughResources\n"
"UserResources\n"->"EnoughResources\n"
"EnoughResources\n"->"CashPointActivity\n"
}