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Research and Implementation of Information Manage System Based on Object Relational Mapping

Author: JinHongYu
Tutor: HuangZunGuo
School: National University of Defense Science and Technology
Course: Computer technology
Keywords: Object-relational mapping Object Model Relational model Mapping
CLC: TP311.52
Type: Master's thesis
Year: 2007
Downloads: 42
Quote: 2
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Abstract


The object-relational mapping (ORM) is to solve software development in the object model to the relational model mapping problem, one of the key technologies, the paper combines indwelling Jinhua Public Security Bureau personnel management system development, in-depth study of the ORM technology, and finally completed in Microsoft realization of the ORM component (SimpleORM) Net platform and its auxiliary development tools. The components can access objects in a relational database to an object-oriented manner, thereby greatly enhancing the efficiency of the development and application of maintenance and scalability. The main work is epitomized in the following areas: 1. Theoretical study of the object model and the relational model and the \\ORM technology conducted in-depth research in the ORM core technology that is mapped objects mapped to object technology analysis and research into the relationship between technology and relationships. The including basic mapping problems raised, advanced mapping analysis and mapping algorithm analysis. 3 to proposed SimpleORM simplify the mapping mode algorithm conducted in-depth research of XML as object-relational mapping language, while achieving a simplified mapping mode algorithm. Including the generic mapping layer, mapping layer level and achieve in the actual case, and verified by experiment design accuracy and efficiency. The 4. Designed and implemented based on the the NET platform ORM the component-SimpleORM combined actual project requirements, analysis of the characteristics of a lien Jinhua Public Security Bureau personnel management system, and the design and implementation of the function SimpleORM. Successfully the SimpleORM components used in the development of the system. Use SimpleORM its corresponding auxiliary development tools, bypassing the preparation of the database CRUD code to save 40% of the development time, easy-to-late maintenance, has good scalability. Provide a strong component for the future development of information systems to improve the efficiency of the development team. The next working mainly to solve the many-to-one relationship mapping mapping mapping and many-to-many relationships, improved mapping algorithm as well as performance improvements and enhanced to strengthen the soundness of the system. Enhance the the auxiliary tool's functionality.

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CLC: > Industrial Technology > Automation technology,computer technology > Computing technology,computer technology > Computer software > Program design,software engineering > Software Engineering > Software Development
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