Equipment maintenance support system is important for raising maintenance support efficiency. On the analysis foundation of equipment maintenance support demand, this paper carrys out function design for maintenance support system. SOA and Web Service based realize technical systematic Architecture is put forward. Then how to adopt Web Service and J2EE have been analysed briefly. Finally, actual problems in application course that may be met are discussed and the further research direction is showed.
IETM has been an important role in equipment integrated support. IETM works mainly through the guidance of the equipment maintenance support information retrieval. So, IETM information retrieval technology is one of the key technologies in the application of integrated equipment support. This paper proposes a new method of IETM information query based on Bayesian network model. The model supports for the IETM information of structured query. IETM information query is based features, the use the IETM dataset words, the elements and structure of unit stats information on the topology of the model structure and the conditional probability learning. Combination of the probability functions of the method and using the model of the probabilistic inference process, the relevance structured IETM information query conditions were estimated. Finally, the information retrieval process is analyzed.
Web service based information integration scenario can achieve the functional integration of heterogeneous platforms. However, the information sharing also requires the integration of Web services data. Based on the analysis of the characteristics of XML, this paper studies the web service data quadratic processing of heterogeneous platform. It realizes the data integration based on the functional integration of heterogeneous platforms. All the data of web services are defined and described by XML Schema. So this study uses XML data binding technology to achieve the conversion of XML Schema data to relational database content objects. Then XML mapping technology is adapted to achieve the mapping of the database content object on the local specific database table. Local system can achieve the quadratic web service data processing based on the database table’s normal operation. Some applications are described to validate.
As the relational database is applied widely, how to protect the sensitive data and state secrets has become a problem which needs to be solved urgently. The conventional relational database encryption technology not only reduces the system’s performance, but also results that we can not quickly inquire the encryption data through the original index mechanism due to the loss of the original partial order relation among data. This paper proposes a kind of relational database encryption technology based on the main memory database. It has not only realized the transparent encryption, decryption and ciphertext storage of the relational database, but also still retained the original response and retrieval performance. This technical proposal has very strong adaptability as well as strong practice guidance meaning for protecting the internet business data and the war-industry informative state secrets.
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