SCT_CalibAlgs::XmlHeader Node1 SCT_CalibAlgs::XmlHeader + XmlHeader() + addStylesheet() Node2 std::ostream Node2->Node1 -m_os Node3 std::basic_ostream < char > Node3->Node2 Node4 std::basic_ios< Char > Node4->Node3 Node5 std::ios_base Node5->Node4