Transaction processing in PRO-MOTION

Abstract

To provide data consistency in the presence of failures and concurrency, database methods will continue to be important to the processing of shared information in a mobile computing environment. Motivated by the need to migrate existing database applications while supporting the development of new database applications and personal services involving mobile and wireless data access, we have developed PRO-MOTION. PRO-MOTION is a mobile transaction processing system that supports disconnected transaction processing in a mobile client-server environment. In this paper, we present the specifics of the structuring and the management of transactions in PRO-MOTION, which utilizes nested-split transactions to provide different levels of isolation and transaction consistency.