Industrial history can be explored on three levels. One is the history of a particular sector, such as food products or petrochemicals. The second is the history of a particular company or enterprise, such as National (Taiwan Panasonic) or President Enterprises.
談產業史可以從三個層面來看，一是行業的歷史，例如食品業或石化業的歷史；第二是企業（公司）的歷史，如國際牌（台灣松下）、統一企業的歷史；第三是經營者的生命史，例如洪家開創國際牌的創業歷程。