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Research of Mobile Database Synchronization Based-on SyncML Protocol

Author: SunJing
Tutor: WangBaoBao
School: Xi'an University of Electronic Science and Technology
Course: Computer Applications
Keywords: Mobile database Synchronization technology SyncML protocol Heterogeneous data sources
CLC: TP311.13
Type: Master's thesis
Year: 2010
Downloads: 40
Quote: 0
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Abstract


In the mobile computing environment, data consistency as one of the main issues must be resolved in mobile database in the practical application. Synchronizing replication technology is the key point to maintain data consistency. However, there are some limitations in the existing synchronizing replication program, such as contradiction between large diary reserves and limited resources of mobile client, contradiction between large data transmitting quantities and mobile limited communication band width, synchronization mechanisms and conflict management strategies lack of commonality, interoperability between heterogeneous data sources is difficult.According to above deficiencies, we analysis the existing replication technology and in-depth study based on the SyncML protocol, innovatively proposes a set of synchronization strategy which meet the SyncML, including synchronous replication strategy based on relation-trancation result set,conflict detection resolution strategy based on relation-trancation result set,conflict detection and processing algorithms based on Pre-defined rules.At the same time, we propose solutions to the key issues of the synchronization process——synchronous change data capture,heterogeneous data source interoperability and slow synchronization mechanisms.At the end, this thesis designs server and client prototype system based-on SyncML, and focuses on the main module of the server to introduce the design and processing details, verifies the feasibility and performance optimization results.Experimental results show that the synchronization schema proposed in this thesis reducing the amount of storage logs and data transmission, improving the efficiency of the synchronization. Simultaneously, the introduction of the SyncML protocol to synchronize the program with better versatility, which is an effective exploration to ultimate proposed a high-performance and versatility synchronous replication solutions.

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CLC: > Industrial Technology > Automation technology,computer technology > Computing technology,computer technology > Computer software > Program design,software engineering > Programming > Database theory and systems
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