الفهرس 
Database IntegrationOnly 14 pages are availabe for public view
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Abstract
During the last few years, the revolution of social networks such as Facebook, Twitter, and Instagram led to a daily increasing of data that are heterogeneous in their sources, data models, and platforms. Heterogeneous data sources have many forms such as the www, deep web, relational database systems, No-SQL database systems, hierarchal data systems, and semi-structured files, in which data are usually allocated on different machines (distributed) and have different data models (heterogeneous).
Large-scale database integration efforts demonstrate that their most valuable contribution is implementing a database integration platform that provides a uniform access to the heterogeneous data sources, as well as the different versions of data reported by the same data source over time. Furthermore, the platform must be able to integrate database from a broad range of data authoring devices and database management systems. It also should be accessible by almost types of data querying devices to ensure globally querying the integration platform from any place on earth anytime and receiving the query result in any data format.