Integrating XML and Relational Data

For the past few decades, there has been a significant interest in data integration, and lots of work has been introduced in this field. Herein we discussed a way to handle the problem of integrating heterogeneous data model, namely relational and XML. Since the relational model is the most data model used to manage data for years. Similarly, XML is rapidly becoming more and more popular as a standard format for exchanging information. In such way, building a sort of connection bridging these two models is clearly a need. To this point, we aim to define a system to extract data regardless of the nature of their model and make one query enough to retrieve data from different models, which are XML and relational in our case. Accordingly, users do not have to be familiar with multiple query language syntax at a time, they can extract data represented in both models by any query language, even if it is not the correspondent query language of the model in question. (C) 2017 The Authors. Published by Elsevier B.V.