action method invok event trigger action link type instanc variabl defin action link displai instanc variabl set visibl param ae event trigger overrid action perform action event ae iter global cur editor select manag select iter select sel select fig sel content perform action type compart attribut attribut compart contain attribut compart contain set attribut visibl displai type compart oper oper compart contain oper compart contain set oper visibl displai type compart extensionpoint defin usecasediagram lp usecasediagram granular type statement lp usecasediagram local nest statement fig us fig us set extens point visibl displai endif type compart enumliter liter compart contain liter compart contain set liter visibl displai 