Data integration framework with an application for Ministry of Interior

Data integration is to provide a uniform access to multiple heterogeneous information sources available by using unified global schema. Data integration system allows users to perceive the entire collection as a single source, query it transparently, and receive a single and unambiguous answer. Ministry Of Interior (MOI) — Egypt has many different data sources, which queried by MOI administrators and users to retrieve information about some persons, but there are many problems face the users to query them; they are appeared on the schema and data level which cause many difficulties in the query answering process. In this paper a hyper technique for improving search performance through these data sources, detect inconsistencies, and finally resolve the detected inconsistencies to provide users with unambiguous answers.