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-updatable　and　navigatable.　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.