Database System Development Process Basing on Dual Persistence Layer

摘要

In database-oriented application system development, because changes of the database model will cause the large number of modified work of the business layer and database layer, to reduce the workload of the modification which was brought by Database model changes, is important issues need to be resolved in the field of the software development, by the research of IBATIS and data dictionary, proposed in the process of database system development to create a dual persistence layer, on the basis of the data persistence layer, establish data dictionary persistence layer, meanwhile building the business layer on the data dictionary, through maintenance of data dictionary', to realize the database persistence layer maintenance of model and data.