Disparate Data Transformation And Transfer Model

Up to current 21 century, network information is becoming an important tool for communication. During the process of enterprise information construction, because enterprise information construction is influenced by some features including muliple steps implementation, technology development limitation, cost and other human related limitation. Further more, there have multiple data management products in reality, from simple file systems to complex database systems, all these compose environment of disparate datasource. Although some distributed data management systems can satisfied with demand of business data storage and management, but somewhrere, there has to need access data stored on distributed network and locations to conclude a descion.This paper focus on the features of disparate data and configuration of enterprise data deployment, compared the related models of data conversion, especially on general feature of systems, proposed a XML-based Disparate Data Transformation and Transfer Model, XDDTT Model for short.According to logic of system, XDDTT Model has data conversion and data transfer partitions.In data conversion sub-model, this paper describe the development phases and reality of data conversion, propose a method which interchange data types by system-defined data type media to consolve the problem of complex data types, throught analyzing SQL Server, Oracle database and SQL-92, this paper establish a practical data type systems; this paper also analyze the features and advantages of using XML as data presentation and make this into XDDTT model, solve the problem of program interface and data storage between multiple program languages. Finally, paper discusses emphases and difficulties of technology related questions.In data transfer sub-model, paper analyze and compare the features and functions among mulitiple data transfer protocol, propose a sterotype of using HTTP protocol as transfer protocol, providing muliti-thread and break point resume functions.This paper also discusses XDDTT model specification and implementation. This system can solve the problem of disparate data integration very well, solved the problem of data isolation among enterprises. Finally, combination with practical using this paper provide further suggestion and hopeness on design and target of the system.