Research On IETM Data Management System Based On S1000D Specification

On the research characteristics of IETM and the network databases,This thesis designs and implements Aircraft Maintenance Data Management System basing on S1000D to integrate and manage the synthesized information of Aviation Digital Maintenance, and simultaneously provide consistent common data source for maintenance.The main research work is as follows:To begin, introduce the present status and future developments of domestic and international technical manuals in the field of aviation maintenance, according the study of the home and abroad of the technical of IETM, point out the necessity and importance of the IETM in the field of the aviation maintenance.Next, analyze the characteristic between the traditiontal repail technique paper and IETM; Put forward that using the international specification S1000D to create IETM and propose the reason for using the the international specification.Thirdly, study the XML data description, construction and memory technology of IETM according to the features of data in the field of aviation maintenance. Elaborate the meaning of data module code and study the principle and technical of DMC. Achieve the conversion from xml data to relational database.Finaly, discuss the principle and method of the maintence data intelligent retrieval based on bayesian network,then demonstrate the process of intelligent retrieval based on the XML document of aviation maintence.Presently, the study of IETM technology is still at the start stage, this article will provide the technical support and the experience for future IETM system of the aviation field.