Enhance the user data privacy for SAAS by separation of data

To many users, the data security in Software-as-a-service (SAAS) is troubling, especially the sensitive data security. In this paper, further separation of user data is adopted, allowing users choose another unrelated third-party to provide database services. And the all operations to the data in the database, such as adding, deleting, encryption, are all still directly executed by the relevant software. The simple user interface in this design allows users update the component code of database access through easy operation. That can avoid service providers or software developers to easily get the user's privacy data.