Abstract

Abstract ..................................................................................................................455 20.1 Introduction ................................................................................................456 20.2 Background ................................................................................................456 20.3 Mobility Applications ................................................................................459 20.4 The WAP-Enabled Transaction Model ......................................................461 20.5 A Sample Application................................................................................463 20.6 Simulation Results .....................................................................................464 20.7 Conclusion..................................................................................................467 Acknowledgments..................................................................................................467 References..............................................................................................................467

Advances in computer and telecommunication technologies have made mobile computing a reality. In the mobile computing environment, users can perform online transaction processing independent of their physical location. As mobile computing devices become more and more popular, mobile databases have started gaining popularity. Hence, software applications have to be redesigned to take advantage of this environment while accommodating the new challenges posed by mobility. A new class of multidatabase (a collection of autonomous and heterogeneous databases) that provides access to a large collection of data via a wireless networking connection is called mobile data access system. The proposed WAP-enabled transaction model allows timely and reliable access to heterogeneous databases while