Data Integration: state of the art, new issues and research plan

In this report we present a summary of the recent literature in the Data Integration research area, focusing our attention on some new issues that are relevant to this area, mostly from an architectural perspective. In fact, although general architectures for data integration systems assign them a centralized role, it does not seem to be a valid approach in real distributed scenarios: some recent works propose new architectures for data integration, deployed in a peer-to-peer environment. We will also summarize some results produced in the first year of the Ph.D. course and we will set out a research plan for the rest of such course.