Research on domain ontology of equipment technical manual

The technical manual of complex equipment has vast text, which makes it slow for relevant staff to obtain knowledge, and then restricts efficiency. IETM is made of unstructured text or pictures, and this kind of form does not improve efficiency of obtaining knowledge radically or make use of computer to get further support. To deal with this problem, this paper researches domain ontology of technical manual. After analyzing technical manual systematically, the domain ontology which is able to provide structured text is built. The domain ontology present will promote progress of IETM.