Abstract: To the restriction of the data binding model in visual database development, a data binding model between Java Beans is investigated. Based on this model, the both sides of data binding could be any components that follow the Java Bean specification, and meanwhile could be provided with the capabilities of self-aware, self-updateable and navigateable. In database development, the data binding could only be traditionally applied between GUI components and DAOs which are encapsulated in the form like row set. The original restriction can be broken through by applying this model that has the ability of binding between GUI components and DAOs which follow the bean specification and are encapsulated in any form.