A split synchronizing mobile transaction model

We propose a new notion of hoardset fragmentablilty and SSMT(Split Synchronizing Mobile Transaction) model for ubiquitous mobile clients, which not only assures transaction atomicity in synchronization but also reduces synchronization cost and provides context-awareness in ubiquitous computing environment with uneven conditioning. It splits the synchronization process of a mobile transaction into 2 parts by exploiting the hoardset fragmentability of data objects which the mobile transaction access: preferred and deferred synchronization part. The deferred synchronization part which has no possibility of conflict uses the data-centric synchronization strategy and its synchronization is delayed. The preferred synchronization part with possibility of conflicts is synchronized early using the transaction-centric synchronization strategy. We also propose a new data hoarding and synchronization mechanism which facilitates the split synchronization of SSMT. The performance evaluation model for the SSMT is developed and its results are compared to a conventional transaction-centric synchronization model.