The Ninth International Baltic Conference on Databases and Information Systems (Baltic DB&IS'2010) took place on July 5–7 in Riga. This conference is continuing a series of successful biennial Baltic conferences on databases and information systems, which have been held in Trakai (1994), Tallin (1996, 2002, 2008), Riga (1998, 2004), and Vilnius (2000, 2006).

During this period, Baltic DB&IS conferences has become real international forums of high scientific criteria for academics and practitioners in the field of databases and advanced information systems (IS) as well as in related areas, such as semantic technologies, ontologies, advanced software engineering (SE) technologies for IS development, and IS and security.

Baltic DB&IS'2010 was organized by the Institute of Mathematics and Computer Science, University of Latvia, and the Faculty of Computing, University of Latvia, in co-operation with the Faculty of Computer Science and Information Technology, Riga Technical University.

The Programme Committee of Baltic DB&IS'2010 consisted of 35 members from 14 countries. 59 papers from 12 countries were submitted for the conference including 13 papers from 5 countries for Doctoral Consortium. Each conference paper was reviewed by three referees, as a rule, from different countries. As a result, 28 papers were accepted and presented at the conference. 27 revised and extended best papers are included in this volume.

The papers present original results concerning integration and security of IS, semantic technologies for IS, domain specific languages and tools for IS, SE with models and ontologies, model based data storages, and business IS.

We express our warmest thanks to all authors who contributed to the conference. Our special thanks to the invited speakers Prof. Hele-Mai Haav, Prof. Jürgen Ebert and Prof. Michal Smialek for sharing their knowledge in advanced systems development methods. We are grateful to members of the Programme Committee and the additional referees for a careful reviewing of submissions.

We would also like to thank all the organizing team and our sponsors, who have made this conference and publishing of this book possible. Our sincere gratitude to Conference Secretary Elina Kalnina for her immense technical work.

Last, but not least, we thank all participants who really made the conference.

October, 2010

Juris Borzovs, Conference Chair

Janis Barzdins, Programme Co-Chair

Marite Kirikova, Programme Co-Chair