System Design for Mobile Phone Data Backup

Abstract

This study briefly looked into how mobile phones work. It then considered the design of the system (graphical user interface, the application and the database) used for mobile phone data backup.  This system backs up mobile phone and Subscribers Identification Module (SIM) data (contacts and SMS) on the computer storage. It also allows for easy retrieval and restoration of the data to phone memory when the need arises. The objectives considered in the design include:  user-friendly graphical user interface (GUI) for user interaction; modular subroutines, methods and functions that retrieves data from the phone and stores it on the computer memory; modular subroutines, methods and functions that retrieves data from the SIM and stores it on the computer memory; modular subroutines and functions that send data from the computer back to the phone; portable database for storing and retrieving the data. The design employs several intuitive system design tools (mainly of graphical nature) to make the concept being discussed as lucid as possible. Some of the tools used include context diagram, data flow diagram, state diagram, use case diagram, deployment diagram, entity relation model etc.

Keywords: Mobile Phone, Data Backup, System Design, GSM, Phone Data.