Method: COLLECT_STRUCT_OF_ECN
Method: COLLECT_MATERIAL_OF_ECN
Method: COLLECT_MPN_OF_ECN
Method: COLLECT_DOC_OF_ECN
Method: DEL_ECN_OBJ_ATTR
Method: ON_OBJS_VER_CREATE
Method: IS_OBJ_ATTACHED_TO_ECN
Method: GET_ECN_ATT_OBJS
Method: ATTACH_OBJS_TO_ECN
Method: GET_ATTR_VALUE_STRUCTURE
Method: GET_VERSION_ATTC_DOC
Method: GET_AFFECTEDITEMS
Method: INITIALIZE_VERSION_LIST