======Sekvence====== <uml t="Declaring participant"> actor Foo1 boundary Foo2 control Foo3 entity Foo4 database Foo5 Foo1 -> Foo2 : To boundary Foo1 -> Foo3 : To control Foo1 -> Foo4 : To entity Foo1 -> Foo5 : To database </uml> <uml title="Change arrow style"> Bob ->x Alice Bob -> Alice Bob ->> Alice Bob -\ Alice Bob \\- Alice Bob //-- Alice Bob ->o Alice Bob o\\-- Alice Bob <-> Alice Bob <->o Alice </uml> <uml title="Grouping message"> Alice -> Bob: Authentication Request alt successful case Bob -> Alice: Authentication Accepted else some kind of failure Bob -> Alice: Authentication Failure group My own label Alice -> Log : Log attack start loop 1000 times Alice -> Bob: DNS Attack end Alice -> Log : Log attack end end else Another type of failure Bob -> Alice: Please repeat end </uml>