WITH THE INCREASING NUMBER OF MOBILE DEVICES IS NECESSARY TO CREATE SOLUTIONS ADAPTED FOR THESE TYPES OF DEVICES THAT HAVE LIMITED PROCESSING CAPACITY, MEMORY AND BANDWIDTH SUFFICIENT TO CONSIDER WE PROPOSE A MODEL BASED SYNCHRONIZATION MESSAGE RELATIONAL DATABASES TO SYNCHRONIZE BETWEEN MOBILE DEVICES AND SERVERS, IN ORDER TO MINIMIZE DATA TRANSFER BETWEEN THE DEVICE AND THE SERVER, MINIMIZING PROCESSING BY THE MOBILE DEVICE. IN THIS MODEL, SYNCHRONIZE DATABASE AND MOVE TO A MOBILE DEVICE DATABASES OF MOBILE DATA SERVICES TO THE MASS OF THE PLANETS WILL BE DISCUSSED.