The research on data integration and service discovering has involved from the beginning different (not always overlapping) communities. Therefore, data and services are described with different models and different techniques to retrieve data and services have been developed. Nevertheless, from a user perspective, the border between data and services is often not so definite, since data and services provide a complementary vision about the available resources.
In NeP4B (Networked Peers for Business), a project funded by the Italian Ministry of University and Research, we developed a semantic approach for providing a uniform representation of data and services, thus allowing users to obtain sets of data and lists of web-services as query results. The NeP4B idea relies on the creation of a Peer Virtual View (PVV) representing sets of data sources and web services, i.e. an ontological representation of data sources which is mapped to an ontological representation of web services. The PVV is exploited for solving user queries: 1) data results are selected by adopting a GAV approach; 2) services are retrieved by an information retrieval approach applied on service descriptions and by exploiting the mappings on the PVV.
In the tutorial, we introduce: 1) the state of the art of semantic-based data integration and web service discovering systems; 2) the NeP4B architecture.

Sonia Bergamaschi was born in Modena (Italy) and received her Laurea degree in Mathematics from the Università di Modena on 1977. She is currently full professor of Computer Engineering in the Modena Engineering Faculty at the Università di Modena e Reggio Emilia, where she teaches “Databases”, “Database technologies”, “Knowledge Representation” and leads the "DBGROUP", i.e. the database research group, at the Dipartimento di Ingegneria dell'informazione (www.dbgroup.unimo.it).
Her research activity has been mainly devoted to knowledge representation and management in the context of very large databases facing both theorical and implementation aspects.
She is author of more than one hundred of articles in international journals and conferences, and her researches have been founded by the Italian MUR, CNR, ASI institutions and by European Community. She has served in the program committees of international and national database and AI conferences. She is a member of the IEEE Computer Society and of the ACM.
For a detailed description of the research activity and of the developed systems see: http://www.dbgroup.unimo.it/

Andrea Maurino performed researches in several fields of computer science. He started with the definition of models and methods for the design of data intensive web applications, definition of models for the Web services composition and e-government. In all this activities a common feature was the analysis of quality. In fact in the field of web applications he developed techniques for conceptual log based analysis of them. In the area of SOA Andrea Maurino participated to the development of models and techniques for the (semantic) web services selection based on Quality of services/non functional properties. Moreover he participated in the development of new quality oriented egovernment methodologies. Current research interests of Andrea Maurino are the assessment of quality of database preserving the privacy of data and record linkage techniques in coopetitive domains. Recently Andrea Maurino started a research activity to integrate these two complementary worlds for the definition of systems able to find at the same time data and services related to data.

The tutorial will be presented by: Sonia Bergamaschi and Andrea Maurino

The tutorial will be open for all interested attendees.
The visit of prof. Sonia Bergamaschi is partially sponsored by The City of Poznań under the ‘Academic Poznań’ program.