Design and Implementation of the Data Access Model and Data Access Layer Constructor

Through the research on MVC model for development,this paper put forward a preliminary ideology about Data Access Model in the hierarchical development mode,Data Access Model used in shielding that of dependence for the developer in presentation layer.It expedites progress and saves man-power,material and time in the application development,and able to respond quickly to the needs of users.The experiments demonstrate that the proposed algorithm is simple,efficient and practicable.