Although hikiya worker had a long history and was engaged in a part of occupational competence required by tobishoku, many specialists nowadays use the jack up system controlled by highly-industrialized computers.
歴史的に古く鳶職の職能の一部だったが、最近は高度に工業化されたコンピューター制御のジャッキアップシステムを駆使する専門業者も多い。