Science & Engineering Research Support soCiety (SERSC)
In this paper, the authors propose the model of the data integrations systems with which the buyer/user searches and aggregates organizational entity from multiple heterogeneous data sources in order to have a contract with the proper entity for the new project. The requirement for the systems is to retrieve and integrate heterogeneous data which is non- or semi-structured. And, the systems need to be alerted when the data is changed. The proposed model supports services to retrieve and integrate an entity(s) and it also alerts the update of the entities to the user.