Placement Node1 Placement + Placement() + Placement() + fileName() + setFileName() + containerName() + setContainerName() + technology() + setTechnology() + auxString() + setAuxString() + toString() + fromString() Node2 std::string Node2->Node1 -m_fileName -m_auxString -m_containerName Node3 std::basic_string< char > Node3->Node2 Node4 long Node4->Node1 -m_technology