数据迁移研究综述

A Review of Data Migration Research

计算机软件系统更新迭代的速度日益加快,遗留系统中的可用软件模块和数据对目标系统的研发和启动具有重要作用,因此需要进行数据迁移,既可以节省开发时间,又可以降低开发成本。当前数据迁移研究中存在遗留系统开发文档缺失、数据质量不一致、数据迁移效率低下等诸多问题。如何对程序模块和数据进行高效、高质量的迁移成为研究热点与难点。从数据质量对数据迁移的影响、数据迁移基本架构、数据迁移方法3个方面进行梳理,分析当前热点的架构和方法,并对常用架构模型和方法进行综合评价,总结针对不同模型的迁移方法;然后对该领域目前存在的问题及今后研究方向进行总结归纳,为后续研究提供思路。

The updating and iteration of computer software system is accelerating day by day,and the available software modules and data ex⁃isting in the legacy system play a decisive role in the research,development and start-up of the target system,so the data migration is widely used in the software update iteration area,because it can save the development time and reduce the development cost.At present,there are many problems in data migration research,such as missing of legacy system development documents,inconsistent data quality and low data migration efficiency.How to transfer program modules and data effectively and with high quality by means of available methods has become a hot and difficult topic in current research.This paper sorts out the influence of data quality on data migration,the basic architecture of data mi⁃gration and data migration methods,analyzes the currently available architectures and methods,comprehensively evaluates the commonly used architecture models and methods,and summarizes the different migration methods for different models.Finally,the current problems and future research work in this field are summarized to provide ideas for further research.