of a Department’S office automation project inGuangdong Province,a suit of Li曲tweight ORM Component(LOC)model based on Dot Netplatform is proposed.One LOC is designed and realized.Around the realization and study ofLOC,the following contents are studied in this thesis. 1.Theoretical research of the object model and the relation model The concept and theoretical foundation of the object model and the relation model isstudied.Moreover the reason which causes the problem of。
’impedance mismatch’’between theobject model and relation model is also discussed deeply. 2.After studied ORM component technology in deep,the thougilt of LOC is proposed. Based on the analysis and comparison to the key technology of ORM component,which ismapping object tO relation technology and object identification technology,the thou曲t of LOCis proposed.That is,under the condition of fulfilling the major requirement of project,wesimplified the ORM component. 3.MYORM·the lightweight ORM component based on Dot NET platform is designedand realized. Combined with the actual project,we analyzed the characteristic of government’S officeautomated system and the problem of changing demands frequently.MYORM is designed andrealized based on Dot NET platform.Its Can carry on some functions such as basic CRUDoperation,simple condition’S query and affairs contr01.It can low the cost of component tomaximum degree under the condition of satisfying the most requirements of governmentdepartments of office automated system and reducing the disadvantage influence of changingdemands. 4.Application and test of MYORM component The configuration of MYORM component is introduced.The test code of CRUD operating,simple query and transaction processing is compiled.At last,MYORM component